NCERT Solutions for Class 4 Maths (Math Magic) Chapter 6 The Junk Seller
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Book Name: Math Magic
Subject: Maths
Chapter Number: 6
Chapter Name: The Junk Seller
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Book Name: Math Magic
Subject: Maths
Chapter Number: 6
Chapter Name: The Junk Seller
You can also bookmark this page by clicking + Save to Library icon and refer to these NCERT Solutions anytime from your account. More Detail
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NCERT Solutions for Class 4 Maths (Math Magic) Chapter 6 The Junk Seller – Text
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Page 1
NCERT
SOLUTIONS
CLASS - 4th
aglase .co
SOLUTIONS
CLASS - 4th
aglase .co
Page 2
Class : 4th
Subject : Math
Chapter : 6
Chapter Name : The Junk Seller
Q1 What about you? Do you also nd Maths dif cult?
Answer. I do not nd maths dif cult.
Page : 60 , Block Name : The Junk Seller
Q2 What is the most dif cult thing in your Maths book?_______
Answer. The chapter “tables and share” is the most dif cult thing in the book.
Page : 60 , Block Name : The Junk Seller
Q3 What do you think is the easiest lesson? ________
Answer. The lesson “A Trip to Bhopal” is the essential.
Page : 60 , Block Name : The Junk Seller
Q1 Find out: how much for a cup of tea?
Ask people and nd out the cost of a cup of tea
at a tea stall ____________
at a hotel ________________
Answer.
At a tea stall, the cost of a cup is Rs.5
At hotel, the cost of a cup is Rs.10.
Page : 61 , Block Name : The Junk Seller
Subject : Math
Chapter : 6
Chapter Name : The Junk Seller
Q1 What about you? Do you also nd Maths dif cult?
Answer. I do not nd maths dif cult.
Page : 60 , Block Name : The Junk Seller
Q2 What is the most dif cult thing in your Maths book?_______
Answer. The chapter “tables and share” is the most dif cult thing in the book.
Page : 60 , Block Name : The Junk Seller
Q3 What do you think is the easiest lesson? ________
Answer. The lesson “A Trip to Bhopal” is the essential.
Page : 60 , Block Name : The Junk Seller
Q1 Find out: how much for a cup of tea?
Ask people and nd out the cost of a cup of tea
at a tea stall ____________
at a hotel ________________
Answer.
At a tea stall, the cost of a cup is Rs.5
At hotel, the cost of a cup is Rs.10.
Page : 61 , Block Name : The Junk Seller
Page 3
Q2 If a person who runs a tea stall earns Rs 30 in a day, how much will he earn in 10 days?
_____________
And in a month? ________________
How did you get the answer? Discuss.
Answer. Earning of per day = Rs. 30
Earning of 10 day = ( 30 x 10 ) = Rs. 300
Earning in a month = ( 30 x 30 ) = Rs. 900
I got the answer by product.
Page : 61 , Block Name : The Junk Seller
Q3 Have you ever heard of someone taking a loan
loan?
For what? _________
Answer. Yes, I have heard of someone taking a loan to buy a bag.
Page : 61 , Block Name : The Junk Seller
Q4 How much loan was taken? ____________
Answer. Rs. 300 was taken as loan.
Page : 61 , Block Name : The Junk Seller
Q5 How much money was paid back? Hariya and Babu want to buy a handcart for Rs 300.
Answer. Hariya: I have taken a loan of Rs. 500 from Devi Prasad. After six months, I will pay Rs. 60
every month.
Babu: But I have taken a loan of Rs. 40. After six months, I will pay back Rs. 250.
Page : 61 , Block Name : The Junk Seller
Q6 Who has to pay back more — Hariya or Babu?
Answer. Hariya paid more amounts.
Page : 61 , Block Name : The Junk Seller
Q1 How Much does Kiran Earn from 9 Rickshaws in a Day?
Answer. She gets Rs. 20 per day.
So, for 9 Rickshaw she earns = ( 9 x 20 ) = Rs. 180
Page : 62 , Block Name : The Junk Seller
_____________
And in a month? ________________
How did you get the answer? Discuss.
Answer. Earning of per day = Rs. 30
Earning of 10 day = ( 30 x 10 ) = Rs. 300
Earning in a month = ( 30 x 30 ) = Rs. 900
I got the answer by product.
Page : 61 , Block Name : The Junk Seller
Q3 Have you ever heard of someone taking a loan
loan?
For what? _________
Answer. Yes, I have heard of someone taking a loan to buy a bag.
Page : 61 , Block Name : The Junk Seller
Q4 How much loan was taken? ____________
Answer. Rs. 300 was taken as loan.
Page : 61 , Block Name : The Junk Seller
Q5 How much money was paid back? Hariya and Babu want to buy a handcart for Rs 300.
Answer. Hariya: I have taken a loan of Rs. 500 from Devi Prasad. After six months, I will pay Rs. 60
every month.
Babu: But I have taken a loan of Rs. 40. After six months, I will pay back Rs. 250.
Page : 61 , Block Name : The Junk Seller
Q6 Who has to pay back more — Hariya or Babu?
Answer. Hariya paid more amounts.
Page : 61 , Block Name : The Junk Seller
Q1 How Much does Kiran Earn from 9 Rickshaws in a Day?
Answer. She gets Rs. 20 per day.
So, for 9 Rickshaw she earns = ( 9 x 20 ) = Rs. 180
Page : 62 , Block Name : The Junk Seller
Page 4
Q2 How did you do it?
Answer. I multiplied 20 to 9.
Page : 62 , Block Name : The Junk Seller
Q3 In a week how much does Kiran earn from one rickshaw?
Answer. She does not take money on Sunday.
Then, she earn money = ( 6 x 20 ) = 120.
Page : 62 , Block Name : The Junk Seller
Q4 Do it mentally and write the answers.
2x6=
20 x 6 =
2 x 60 =
3 x 42 =
4 x 80 =
4 x 81 =
9 x 25 =
31 x 9 =
Answer. 2 x 6 =
Solution: 2 x 6 = 12
20 x 6 =
Solution: 20 x 6 = 120
2 x 60 =
Solution: 2 x 6 = 120
3 x 42 =
Solution: 3 x 42 = 126
4 x 80 =
Solution: 4 x 80 = 320
4 x 81 =
Solution: 4 x 81 = 324
9 x 25 =
Solution: 9 x 25 = 225
31 x 9 =
Solution: 31 x 9 = 279
Page : 63 , Block Name : The Junk Seller
Q5 How much will Kiran pay for 31 kg newspaper?
Answer. I multiplied 20 to 9.
Page : 62 , Block Name : The Junk Seller
Q3 In a week how much does Kiran earn from one rickshaw?
Answer. She does not take money on Sunday.
Then, she earn money = ( 6 x 20 ) = 120.
Page : 62 , Block Name : The Junk Seller
Q4 Do it mentally and write the answers.
2x6=
20 x 6 =
2 x 60 =
3 x 42 =
4 x 80 =
4 x 81 =
9 x 25 =
31 x 9 =
Answer. 2 x 6 =
Solution: 2 x 6 = 12
20 x 6 =
Solution: 20 x 6 = 120
2 x 60 =
Solution: 2 x 6 = 120
3 x 42 =
Solution: 3 x 42 = 126
4 x 80 =
Solution: 4 x 80 = 320
4 x 81 =
Solution: 4 x 81 = 324
9 x 25 =
Solution: 9 x 25 = 225
31 x 9 =
Solution: 31 x 9 = 279
Page : 63 , Block Name : The Junk Seller
Q5 How much will Kiran pay for 31 kg newspaper?
Page 5
Answer. So earning of selling of 32kg of from = 2 x 32
= Rs. 64
Page : 63 , Block Name : The Junk Seller
Q6
How much will Kiran pay for 42 kg newspaper?
Also nd the cost of:
a) 22 kg of plastic.
b) 23 kg of waste paper.
c) 12 kg of iron.
Answer. Kiran will pay Rs ( 42 x 5 ) = Rs. 210.
a) Cost of 22 kg of plastic = Rs ( 22 x 10 ) = Rs. 220
b) Cost of 23 kg of newspaper = Rs ( 23 x 4 ) = Rs. 92
c) Cost of 12 kg of iron = Rs ( 12 x 12 ) = Rs. 144
Page : 64 , Block Name : The Junk Seller
Q7 Can you do this without writing?
Guess the total money, Kiran will pay to the junk collectors. Will it be
— More than 600?
— Less than 600?
Answer. Less than 600.
Page : 64 , Block Name : The Junk Seller
Q1 Kiran bought 1 kg plastic for Rs 10, but sold 1 kg plastic for Rs 12. How much money does she
earn on selling 1 kg plastic? Rs _______
= Rs. 64
Page : 63 , Block Name : The Junk Seller
Q6
How much will Kiran pay for 42 kg newspaper?
Also nd the cost of:
a) 22 kg of plastic.
b) 23 kg of waste paper.
c) 12 kg of iron.
Answer. Kiran will pay Rs ( 42 x 5 ) = Rs. 210.
a) Cost of 22 kg of plastic = Rs ( 22 x 10 ) = Rs. 220
b) Cost of 23 kg of newspaper = Rs ( 23 x 4 ) = Rs. 92
c) Cost of 12 kg of iron = Rs ( 12 x 12 ) = Rs. 144
Page : 64 , Block Name : The Junk Seller
Q7 Can you do this without writing?
Guess the total money, Kiran will pay to the junk collectors. Will it be
— More than 600?
— Less than 600?
Answer. Less than 600.
Page : 64 , Block Name : The Junk Seller
Q1 Kiran bought 1 kg plastic for Rs 10, but sold 1 kg plastic for Rs 12. How much money does she
earn on selling 1 kg plastic? Rs _______
Page 6
Answer. Earning on selling 1 kg plastic = Rs. 12 - Rs. 10 = Rs. 2
Earning of 63 kg of plastic = 63 x 2 = 126
Page : 65 , Block Name : The Junk Seller
Q2 Kiran sells 32 kg iron
How much money will Dinu pay for 32 kg iron?
Kiran buys 1 kg iron for Rs 12, but sells it for Rs 14. How much does she earn when she sells
32 kg iron? Rs _________
Answer. Cost of 1 kg of Iron = Rs. 14
Cost of 32 kg of Iron 14 x 32 = 448.
Earning of selling 1 kg of Iron = Rs. 14 - Rs. 12 = Rs. 2
So, Earning of selling 32 kg of Iron = 2 x 32 = Rs. 64
Page : 65 , Block Name : The Junk Seller
Q3 What does Dinu pay for brass? How much money will Dinu pay for 4 kg brass? _________
First guess the answer and then calculate:
a) 37 × 18 =
b) 45 × 24 =
c) 69 × 52 =
d) 77 × 55 =
e) 142 × 5 =
f) 382 × 3 =
g) 2 × 175 =
h) 4 × 206 =
Answer. The cost of 1 kg brass = Rs 170
The cost of 4 kg brass = 4 x 170
= Rs. 680
a) 37 × 18 = 740
b) 45 × 24 = 1080
c) 69 × 52 = 3588
d) 77 × 55 = 4235
e) 142 × 5 = 710
f) 382 × 3 = 1146
g) 2 × 175 = 350
h) 4 × 206 = 824
Page : 66 , Block Name : The Junk Seller
Earning of 63 kg of plastic = 63 x 2 = 126
Page : 65 , Block Name : The Junk Seller
Q2 Kiran sells 32 kg iron
How much money will Dinu pay for 32 kg iron?
Kiran buys 1 kg iron for Rs 12, but sells it for Rs 14. How much does she earn when she sells
32 kg iron? Rs _________
Answer. Cost of 1 kg of Iron = Rs. 14
Cost of 32 kg of Iron 14 x 32 = 448.
Earning of selling 1 kg of Iron = Rs. 14 - Rs. 12 = Rs. 2
So, Earning of selling 32 kg of Iron = 2 x 32 = Rs. 64
Page : 65 , Block Name : The Junk Seller
Q3 What does Dinu pay for brass? How much money will Dinu pay for 4 kg brass? _________
First guess the answer and then calculate:
a) 37 × 18 =
b) 45 × 24 =
c) 69 × 52 =
d) 77 × 55 =
e) 142 × 5 =
f) 382 × 3 =
g) 2 × 175 =
h) 4 × 206 =
Answer. The cost of 1 kg brass = Rs 170
The cost of 4 kg brass = 4 x 170
= Rs. 680
a) 37 × 18 = 740
b) 45 × 24 = 1080
c) 69 × 52 = 3588
d) 77 × 55 = 4235
e) 142 × 5 = 710
f) 382 × 3 = 1146
g) 2 × 175 = 350
h) 4 × 206 = 824
Page : 66 , Block Name : The Junk Seller
Document Details
| Board / Org | NCERT |
| Exam | Class 4 |
| Type | Solution |
| Pages | 6 |
| Updated | 30 Apr 2026 |