NCERT Class 3 Mathematics • Classic CBSE Track

Chapter 11: Jugs and Mugs

Q: How many of each container will you need to make exactly 1 Litre (1,000 mL)? (a) 200 mL glasses, (b) 100 mL medicine cups, (c) 500 mL bottles.

Calculations for 1,000 mL:• (a) 200 mL glasses: 1,000 ÷ 200 = 5 glasses.• (b) 100 mL medicine cups: 1,000 ÷ 100 = 10 cups.• (c) 500 mL bottles: 1,000 ÷ 500 = 2 bottles.

Q: A doctor prescribes 5 mL of cough syrup to be taken 3 times a day for 5 days. (a) How many mL of syrup does the patient take in one day? (b) How many

Solution:• Dose per time = 5 mL• Times per day = 3(a) Daily consumption: 5 mL × 3 = 15 mL per day.(b) 5-Day course total: 15 mL × 5 days = 75 mL in total.

Q: At the wedding party of the squirrels, 10 litres of sweet kheer was cooked. If each bowl holds 100 mL, how many guests can be served with kheer?

Step-by-step Solution:1. Total kheer = 10 litres.2. Convert litres to millilitres: 10 × 1000 mL = 10,000 mL.3. Capacity of 1 bowl = 100 mL.4. Number of guests served = 10,000 ÷ 100 = 100 guests.

Q: At Bunny and Banno's wedding feast, delicious kheer was served:• The donkey drank 10 glasses of 100 mL each.• The monkey drank 5 glasses of 200 mL eac

Step-by-Step Capacity Math:(a) Donkey's Kheer:• 10 glasses × 100 mL = 1000 mL = 1 Litre.(b) Monkey's Kheer:• 5 glasses × 200 mL = 1000 mL = 1 Litre.(c) Comparison:• Both the donkey and the monkey drank exactly the same amount (1 Litre each).

Q: A thirsty crow found a pitcher with water deep at the bottom. He dropped 10 small pebbles into the pitcher.(a) Why did the water level rise when pebbl

Water Displacement Science & Math:(a) Why Water Rises:• Pebbles take up space (volume) at the bottom of the pitcher. Because two objects cannot occupy the same space at the same time, the solid pebbles push the water upward.(b) Total Water Rise:• 10 pebbles × 50 mL = 500 mL (or half a litre).

Q: How many of each container are required to fill a 1-litre (1000 mL) bottle completely?(a) 500 mL bottles(b) 250 mL glasses(c) 200 mL cups(d) 100 mL la

Conversions into 1000 mL:• (a) 500 mL: 1000 ÷ 500 = 2 bottles.• (b) 250 mL: 1000 ÷ 250 = 4 glasses.• (c) 200 mL: 1000 ÷ 200 = 5 cups.• (d) 100 mL: 1000 ÷ 100 = 10 ladles.

Q: An average family uses:• Cooking & drinking: 25 Litres• Bathing: 80 Litres• Washing clothes & utensils: 65 Litres(a) What is the total water used by t

Step-by-Step Usage:(a) Total Daily Usage:• 25 L + 80 L + 65 L = 170 Litres.(b) Remaining Water:• Tank capacity = 500 Litres.• Used = 170 Litres.• Remaining = 500 - 170 = 330 Litres.

Q: In Chapter 11 ('Jugs and Mugs'), a student solves an NCERT word problem: If 1 kg of apples costs ₹60 and 1 kg of oranges costs ₹40, how much do 2 kg o

Step-by-Step Solution:1. Cost of 2 kg apples = 2 × ₹60 = ₹120.2. Cost of 3 kg oranges = 3 × ₹40 = ₹120.3. Total cost = ₹120 + ₹120 = ₹240.

Q: In 'Jugs and Mugs', how do you measure and compare quantities accurately? Explain with an example using standard units.

Measurement Explanation:• Standard units provide consistent and reliable measurements across the world.• For length, we use metres (m) and centimetres (cm).• For weight, we use kilograms (kg) and grams (g).• For liquids, we use litres (L) and millilitres (mL).• Unlike non-standard units (such as foo

Q: Suresh bought a school bag for ₹175 and a pencil box for ₹45. He gave a ₹500 note to the shopkeeper. How much change did he receive?

Step-by-Step Solution:1. Total money spent = ₹175 + ₹45 = ₹220.2. Amount paid = ₹500.3. Change returned = ₹500 - ₹220 = ₹280.

Liquid Capacity, Litres (L) & Millilitres (mL), Kheer Party & Medicine Doses | CBSE Session 2026–27

Core Pedagogical Competencies & Concepts

Estimating and measuring capacity using non-standard vs standard units.
1 Litre = 1000 Millilitres (1 L = 1000 mL).
Equivalent fractions: 500 mL = 1/2 Litre; 250 mL = 1/4 Litre.
Calculating daily water intake and beverage preparation for guests.

All Textbook Exercises & In-Text Tasks (17 Questions)

100% Complete Ingestion

Q1 Capacity Combinations • Making 1 Litre

How many of each container will you need to make exactly 1 Litre (1,000 mL)? (a) 200 mL glasses, (b) 100 mL medicine cups, (c) 500 mL bottles.

[3 Marks]

✅ Step-by-Step Solution & Working

Calculations for 1,000 mL:
• (a) 200 mL glasses: 1,000 ÷ 200 = 5 glasses.
• (b) 100 mL medicine cups: 1,000 ÷ 100 = 10 cups.
• (c) 500 mL bottles: 1,000 ÷ 500 = 2 bottles.

CBSE Step-by-Step Marking Scheme

Correct count for 200 mL (5) 1.0 M

Correct count for 100 mL (10) 1.0 M

Correct count for 500 mL (2) 1.0 M

Q2 Medicine Dosage Calculation • Practical Math

A doctor prescribes 5 mL of cough syrup to be taken 3 times a day for 5 days. (a) How many mL of syrup does the patient take in one day? (b) How many total mL are needed for the full 5-day course?

[3 Marks]

✅ Step-by-Step Solution & Working

Solution:
• Dose per time = 5 mL
• Times per day = 3
(a) Daily consumption: 5 mL × 3 = 15 mL per day.

(b) 5-Day course total: 15 mL × 5 days = 75 mL in total.

CBSE Step-by-Step Marking Scheme

Correct daily dosage calculation (15 mL) 1.5 M

Correct 5-day course calculation (75 mL) 1.5 M

Q3 Kheer Party • Real-World Sharing

At the wedding party of the squirrels, 10 litres of sweet kheer was cooked. If each bowl holds 100 mL, how many guests can be served with kheer?

[3 Marks]

✅ Step-by-Step Solution & Working

Step-by-step Solution:
1. Total kheer = 10 litres.
2. Convert litres to millilitres: 10 × 1000 mL = 10,000 mL.
3. Capacity of 1 bowl = 100 mL.
4. Number of guests served = 10,000 ÷ 100 = 100 guests.

CBSE Step-by-Step Marking Scheme

Correct conversion of 10 L to 10,000 mL 1.5 M

Correct division to find 100 guests 1.5 M

Q4 Bunny and Banno's Wedding Feast • Kheer Consumption

At Bunny and Banno's wedding feast, delicious kheer was served:
• The donkey drank 10 glasses of 100 mL each.
• The monkey drank 5 glasses of 200 mL each.
• The elephant drank 10 litres.
(a) How many millilitres of kheer did the donkey drink? Convert to litres.
(b) How many millilitres did the monkey drink? Convert to litres.
(c) Who drank more kheer: the donkey or the monkey?

[3 Marks]

✅ Step-by-Step Solution & Working

Step-by-Step Capacity Math:
(a) Donkey's Kheer:
• 10 glasses × 100 mL = 1000 mL = 1 Litre.

(b) Monkey's Kheer:
• 5 glasses × 200 mL = 1000 mL = 1 Litre.

(c) Comparison:
• Both the donkey and the monkey drank exactly the same amount (1 Litre each).

CBSE Step-by-Step Marking Scheme

Correct calculation for donkey (1000 mL = 1 L) 1.0 M

Correct calculation for monkey (1000 mL = 1 L) 1.0 M

Correct equality conclusion 1.0 M

Q5 Clever Crow Story • Water Displacement

A thirsty crow found a pitcher with water deep at the bottom. He dropped 10 small pebbles into the pitcher.
(a) Why did the water level rise when pebbles were dropped?
(b) If each pebble displaced 50 mL of water, by how many mL did the water level rise in total?

[3 Marks]

✅ Step-by-Step Solution & Working

Water Displacement Science & Math:
(a) Why Water Rises:
• Pebbles take up space (volume) at the bottom of the pitcher. Because two objects cannot occupy the same space at the same time, the solid pebbles push the water upward.

(b) Total Water Rise:
• 10 pebbles × 50 mL = 500 mL (or half a litre).

CBSE Step-by-Step Marking Scheme

Clear physical explanation of volume displacement 1.5 M

Correct multiplication (10 × 50 mL = 500 mL) 1.5 M

Q6 Measuring 1 Litre • Fractional Bottle Volumes

How many of each container are required to fill a 1-litre (1000 mL) bottle completely?
(a) 500 mL bottles
(b) 250 mL glasses
(c) 200 mL cups
(d) 100 mL ladles

[4 Marks]

✅ Step-by-Step Solution & Working

Conversions into 1000 mL:
• (a) 500 mL: 1000 ÷ 500 = 2 bottles.
• (b) 250 mL: 1000 ÷ 250 = 4 glasses.
• (c) 200 mL: 1000 ÷ 200 = 5 cups.
• (d) 100 mL: 1000 ÷ 100 = 10 ladles.

CBSE Step-by-Step Marking Scheme

Correct values for (a): 2 and (b): 4 2.0 M

Correct values for (c): 5 and (d): 10 2.0 M

Q7 Household Water Usage • Daily Estimation

An average family uses:
• Cooking & drinking: 25 Litres
• Bathing: 80 Litres
• Washing clothes & utensils: 65 Litres
(a) What is the total water used by the family in one day?
(b) If their overhead water tank holds 500 Litres, how many litres of water remain in the tank at the end of the day?

[3 Marks]

✅ Step-by-Step Solution & Working

Step-by-Step Usage:
(a) Total Daily Usage:
• 25 L + 80 L + 65 L = 170 Litres.

(b) Remaining Water:
• Tank capacity = 500 Litres.
• Used = 170 Litres.
• Remaining = 500 - 170 = 330 Litres.

CBSE Step-by-Step Marking Scheme

Correct total usage sum (170 L) 1.5 M

Correct tank remainder (330 L) 1.5 M

Q8 Textbook Exercise • Real-Life Math

In Chapter 11 ('Jugs and Mugs'), a student solves an NCERT word problem: If 1 kg of apples costs ₹60 and 1 kg of oranges costs ₹40, how much do 2 kg of apples and 3 kg of oranges cost altogether?

[3 Marks]

✅ Step-by-Step Solution & Working

Step-by-Step Solution:
1. Cost of 2 kg apples = 2 × ₹60 = ₹120.
2. Cost of 3 kg oranges = 3 × ₹40 = ₹120.
3. Total cost = ₹120 + ₹120 = ₹240.

CBSE Step-by-Step Marking Scheme

Apples = ₹120 1 M

Oranges = ₹120 1 M

Total = ₹240 1 M

Q9 In-Text Activity • Hands-on Investigation

In 'Jugs and Mugs', how do you measure and compare quantities accurately? Explain with an example using standard units.

[3 Marks]

✅ Step-by-Step Solution & Working

Measurement Explanation:
• Standard units provide consistent and reliable measurements across the world.
• For length, we use metres (m) and centimetres (cm).
• For weight, we use kilograms (kg) and grams (g).
• For liquids, we use litres (L) and millilitres (mL).
• Unlike non-standard units (such as footsteps or handspans), standard units give the exact same measurement no matter who measures.

CBSE Step-by-Step Marking Scheme

Standard units defined 1.5 M

Examples for length, weight, liquid 1.5 M

Q10 Practice Time • Two-Step Word Problem

Suresh bought a school bag for ₹175 and a pencil box for ₹45. He gave a ₹500 note to the shopkeeper. How much change did he receive?

[3 Marks]

✅ Step-by-Step Solution & Working

Step-by-Step Solution:
1. Total money spent = ₹175 + ₹45 = ₹220.
2. Amount paid = ₹500.
3. Change returned = ₹500 - ₹220 = ₹280.

CBSE Step-by-Step Marking Scheme

Total spent = ₹220 1.5 M

Change = ₹280 1.5 M

Q11 Mental Math • Quick Calculations

Calculate mentally without writing long columns:
(a) 250 + 150 = ?
(b) 500 - 180 = ?
(c) 4 × 25 = ?
(d) 100 ÷ 4 = ?

[2 Marks]

✅ Step-by-Step Solution & Working

Mental Calculations:
• (a) 250 + 150 = 400.
• (b) 500 - 180 = 320.
• (c) 4 × 25 = 100.
• (d) 100 ÷ 4 = 25.

CBSE Step-by-Step Marking Scheme

All 4 mental results correct 2 M

Q12 Geometry & Shapes • Edge and Corner Counting

Name a 3D solid shape that has:
(a) 6 flat square faces, 12 straight edges, and 8 corners.
(b) 1 curved surface and 2 flat circular faces.
(c) Only 1 curved surface and 0 corners.

[3 Marks]

✅ Step-by-Step Solution & Working

Solid Shapes:
• (a) 6 square faces, 12 edges, 8 corners: Cube.
• (b) 1 curved and 2 circular faces: Cylinder.
• (c) Only 1 curved surface, 0 corners: Sphere.

CBSE Step-by-Step Marking Scheme

Cube 1 M

Cylinder 1 M

Sphere 1 M

Q13 Pattern Time • Sequences and Rules

Identify the rule and find the next two terms: 5, 10, 20, 40, ___, ___.

[2 Marks]

✅ Step-by-Step Solution & Working

Rule: Each term is multiplied by 2 (doubled).
• 40 × 2 = 80
• 80 × 2 = 160.
Next terms are 80, 160.

CBSE Step-by-Step Marking Scheme

Next terms 80, 160 1 M

Rule: multiplying by 2 1 M

Q14 Time & Calendar • Date Calculation

Rohan's summer vacation starts on 15th May and ends on 30th June. How many total days of vacation does Rohan get? (Remember: May has 31 days).

[3 Marks]

✅ Step-by-Step Solution & Working

Days Count:
• Days in May: From 15th to 31st = (31 - 15) + 1 = 17 days.
• Days in June: Full 30 days = 30 days.
• Total vacation days = 17 + 30 = 47 days.

CBSE Step-by-Step Marking Scheme

May days = 17 1.5 M

June days = 30; Total = 47 days 1.5 M

Q15 Equal Sharing • Division Problem

Mother bakes 36 cookies and wants to distribute them equally among 4 children. How many cookies does each child receive? Write the division sentence.

[2 Marks]

✅ Step-by-Step Solution & Working

Equal Sharing:
• Total cookies = 36.
• Number of children = 4.
• Cookies per child = 36 ÷ 4 = 9 cookies.
• Division sentence: 36 ÷ 4 = 9.

CBSE Step-by-Step Marking Scheme

36 ÷ 4 = 9 cookies 2 M

Q16 Data Handling • Reading a Bar Chart

A survey of pets owned by children: Dog (14), Cat (10), Parrot (6), Fish (8).
(a) Which pet is owned by the least number of children?
(b) How many total pets are there?
(c) How many more dogs are there than parrots?

[3 Marks]

✅ Step-by-Step Solution & Working

Survey Analysis:
• (a) Least owned pet: Parrot (only 6).
• (b) Total pets: 14 + 10 + 6 + 8 = 38 pets.
• (c) Difference: 14 Dogs - 6 Parrots = 8 more dogs.

CBSE Step-by-Step Marking Scheme

Parrot least 1 M

Total = 38 1 M

Difference = 8 1 M

Q17 Money • Making a Change

A toy train costs ₹85. You pay with a ₹100 note. The shopkeeper gives you change in 5-rupee coins only. How many 5-rupee coins do you receive?

[2 Marks]

✅ Step-by-Step Solution & Working

Calculations:
• Change due = ₹100 - ₹85 = ₹15.
• Number of 5-rupee coins = ₹15 ÷ ₹5 = 3 coins.

CBSE Step-by-Step Marking Scheme

Change = ₹15 1 M

3 coins of ₹5 1 M

🌟 NEP 2020 Competency-Based Case Study

School Drinking Water Conservation

A leaking tap in the school corridor drips 100 mL of water every hour. The plumber was able to fix it after 12 hours.

Analytical Task: How much water was wasted in millilitres? How much is that in litres and millilitres?

Evaluation & Model Answer:

1. Water wasted in 12 hours = 12 × 100 mL = 1,200 mL.
2. In litres and millilitres: 1,200 mL = 1,000 mL + 200 mL = 1 Litre 200 Millilitres (1 L 200 mL).

Rubric: 1.5M multiplication calculation + 1.5M conversion to litres and millilitres.