NCERT Solutions | Class 4 Maths Chapter 6 | The Junk Seller
CBSE Solutions | Maths Class 4
Check the below NCERT Solutions for Class 4 Maths Chapter 6 The Junk Seller Pdf free download. NCERT Solutions Class 4 Maths were prepared based on the latest exam pattern. We have Provided The Junk Seller Class 4 Maths NCERT Solutions to help students understand the concept very well.
NCERT | Class 4 Maths
| Book: | National Council of Educational Research and Training (NCERT) |
|---|---|
| Board: | Central Board of Secondary Education (CBSE) |
| Class: | 4 |
| Subject: | Maths |
| Chapter: | 6 |
| Chapters Name: | The Junk Seller |
| Medium: | English |
The Junk Seller | Class 4 Maths | NCERT Books Solutions
NCERT Solutions for Class 4 Maths Chapter 6 The Junk Seller
1. What about you? Do you also find Maths difficult?Ans. - No. I do not find Maths difficult. It becomes easy if it is practised well regularly.
2. What is the most difficult thing in your Maths book?
Ans. - Nothing, all topics look easy to me.
3. What do you think is the easiest lesson?
Ans. - . All lessons are of equal level. This depends upon a lot of practice of maths.
1. Ask people and find out the cost of a cup of tea –
• At a tea stall
Ans. - At a tea stall a cup of tea costs Rs 3.
• At a hotel
Ans. - At a hotel a cup of tea costs Rs 5.
2. If a person who runs a tea stall earns ? 30 a $ay, how much will he earn in 10 days?
Ans. -
Earning in 1 day = Rs 30 x 1
Therefore, earning in 2 days = Rs 30 x 2
Earning in 3 days = Rs 30 x 3
And so on_______
Earning in 10 days = Rs 30 x 10 = 300
•And in a month?
Ans.
A month has 30 days
If earning in 1 day = Rs 30
Therefore, earning in 30 days = Rs 30 X 30 = Rs 900.
FindOut: What is a Loan?
1. Have you ever heard of someone taking a loan? For what?
Ans. - .I heard a person took loan. He took loan to start his shop.
2. How much loan was taken?
Ans. - He took Rs 10,000.
3. How much money was paid back?
Ans. - .He paid back Rs 11,000 after one year.
4. Who has to pay back more-Hariya or Babu?
Ans. - .Hariya has to pay Rs 51 every month for six months.
Total money he has to pay = 51 x 6 = Rs 306 Babu has to pay Rs 360
Hence, Babu will have to pay back more money.
Ans. - From one rickshaw she earns = Rs 20
From 2 rickshaws she will earn = Rs 20 x 2
From 3 rickshaws she will earn = Rs 20 x 3
Similarly from 9 rickshaws she will earn = Rs 20 x 9 = Rs 180
That is 9 times 20.
2. For 10 rickshaws she will get Rs 20 x 10 = Rs 200.
So, for 9 rickshaws, she will get Rs 200 – _____ = ______
Ans. - . For 9 rickshaws she will get Rs 200 – 20 = Rs 180.
Ans. - There are 7 days in a week.
In 1 day Kiran earns from one rickshaw = Rs 20
So, in 7 days Kiran will earn from one rickshaw = Rs 20 x 7 = Rs 140.
2. Do it mentally and write the answers
2 x 6 = ________ 4 x 80 = ________
20 x 6 = ________ 4 x 81 = ________
2 x 60 = ________ 9 x 25 = ________
3 x 42 = ________ 31 x 9 = ________
Ans. -
2 x 6 = 12 4 x 80 = 320
20 x 6 = 120 4 x 81 = 324
2 x 60 = 120 9 x 25 = 225
3 x 42 = 126 31 x 9 = 279
How Much to Pay for this Junk?
3. How much will Kiran pay for 31 kg newspaper?
Ans. - The cost of 1 kg of newspaper = Rs 5
So, the cost of 31 kg of newspaper = Rs 5 x 31
= Rs 155.
1. How much will Kiran pay for 42 kg newspaper?
Ans. - . Kiran pays for 1 kg of newspaper = Rs 5
So, she will pay for 42 kg of newspaper = Rs 15 x 42
= Rs 210.
2. Also find the cost of • 22 kg of plastic
Ans. - Rate of 1 kg of plastic = Rs 10
Therefore, cost of 22 kg of plastic = Rs 10 x 22
= Rs 220.
• 23 kg of waste paper
Ans. - The cost of 1 kg of waste paper = Rs 4
Therefore, the cost of 23 kg of waste paper = Rs 4 x 23
= Rs 92.
• 12 kg of iron
Ans. - . The cost of 1 kg of iron = Rs 12
Therefore, the cost of 12 kg of iron = Rs 12 x 12
= Rs 144.
3. Guess the total money Kiran will pay to the junk collectors. Will it be: — More than 600?
— Less than 600?
Ans. - The total money Kiran will pay to the junk collectors
The cost of 42 kg of newspaper = Rs 210
The cost of 22 kg of plastic = Rs 220
The cost of 23 kg of waste paper = Rs 92
The cost of 12 kg of iron = Rs 144
Total cost of all junks = Rs 666
Hence Kiran will pay more than Rs 600.
1. 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 _______
Ans. - . Kiran bought 1 kg plastic for Rs 10 and sold 1 kg plastic for Rs 12 So, she earn Rs 12 – Rs 10 = Rs 2.
• So, how much money does she earn for 63 kg? Rs _______
Ans. - . For 1 kg plastic she earns Rs 2.
Therefore, for 63 kg plastic she earns = Rs 2 x 63
= Rs 126
It can be calculated as follows:
You will get 126 by adding the digits in last row.
B. Kiran sells 32 kg iron.
2. How much money will Dinu pay for 32 kg iron?
Ans. - 1 kg of plastic is sold in Rs 14
Therefore, 32 kg of plastic = Rs 14 x 32 = Rs 448 This can be calculated in similar manner
You can get the desired numbers by adding the numbers in bold
300 + 20 + 120 + 8 = 448
So, Dinu will pay Rs 448 for 32 kg of plastic.
3. 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?
Ans. - . Kiran earns by selling 1 kg of iron = Rs 14 – Rs 12
= Rs 2
So, she will earn by selling 32 kg of iron = Rs 2 x 32
= Rs 64
This can be calculated as follows also.
You will get the desired result by adding the numbers in last row
Which will be equal to 60 + 4 = 64
Hence, Kiran earns Rs 64 by selling 32 kg of iron.
C. What will Dinu pay for 152 kg newspaper?
4. I bought 1 kg newspaper for Rs 5, but sold it for Rs 6. How much money did I earn by selling 152 kg of newspaper?
Ans. - She earn by selling 1 kg of newspaper
= Selling price of newspaper – Purchasing price of newspaper
=Rs 6-Rs 5 = Rs 1
Hence, she earned by selling 152 kg newspaper
= Rs 1 x 152 = Rs 152.
D. What does Dinu pay for brass?
5. How much money will Dinu pay for 4 kg brass?
Ans. - The rate of 1 kg of brass according to Dinu’s price list = Rs 180
So, Dinu will pay for 4 kg of brass = Rs 180 x 4
= Rs 720
This can be calculated as follows:
By adding the digits in last row you will get 400 + 320 = 720 Hence, Dinu will pay Rs 720 for 4 kg of brass.
(a) 37 x 18 = (b) 45 x 24 = (c) 69 x 52 =
(e) 142 x 5 = (f) 382 x 3 = (g) 2 x 175 =
(d) 77 x 55 = (ft)4 x 206 =
Ans. -
(a) Guess = 37 x 18 means 40 x 20 = about 800
Calculation
By adding the digits in third and fifth rows you will get
300 + 70 + 240 + 56 = 666
Hence, 37 x 18 = 666.
(b) Guess 45 x 24
Then will be near to 40 x 25 = 1000
By Calculation
By adding the numbers in third and fifth rows you will get
800 + 100 + 160 + 20 = 1080
So, 45 x 24 = 1080.
(c) On guessing 69 x 52, the numbers will be near to 70 x 50 = 3500
Calculation
By adding the numbers in third and fifth rows you will get
3000 + 450 + 120 + 18 = 3588
So, 69 x 52 = 3588.
(d) On guessing 77 x 55
The numbers will be near to 80 x 50 = 4000
Calculation:
By adding the numbers in third and fifth rows you will get
3500 + 350 + 350 + 35 = 4235
Hence, 77 x 55 = 4235.
(e) On guessing 142 x 5
The number will be near to 140 x 5 = 700
On calculation
By adding the numbers in last row you will get
500 + 200 + 10 = 710 .
Hence, 142 x 5 = 710.
(f) 382 x 3
On guessing this number will be near to 380 x 3 = 1140
On calculation:
By adding the numbers in last row you will get
900 + 240 + 6 = 1146
So,-382 x 3 = 1146.
(g) 2 x 175
This number will be near to 2 x 175 = 350
On calculation:
By adding numbers in last row you will get
200 + 140 + 10 = 350.
(h) 4 x 206
This number will be near to 5 x 200 = 1000
On calculation:
By adding the numbers in last row you will get
800 + 24 = 824
So, 4 x 206 = 824. Fill My Diary
1. Now you make a record in her diary.
Find out how much she earned this time.
NCERT Class 4 Maths
Class 4 Maths Chapters | Maths Class 4 Chapter 6
Chapterwise NCERT Solutions for Class 4 Maths
-
NCERT Solutions For Class 4 Maths Chapter 1 Building With Bricks
NCERT Solutions For Class 4 Maths Chapter 2 Long And Short
NCERT Solutions For Class 4 Maths Chapter 3 A Trip To Bhopal
NCERT Solutions For Class 4 Maths Chapter 4 Tick-Tick-Tick
NCERT Solutions For Class 4 Maths Chapter 5 The Way The World Looks
NCERT Solutions For Class 4 Maths Chapter 6 The Junk Seller
NCERT Solutions For Class 4 Maths Chapter 7 Jugs And Mugs
NCERT Solutions For Class 4 Maths Chapter 8 Carts And Wheels
NCERT Solutions For Class 4 Maths Chapter 9 Halves And Quarters
NCERT Solutions For Class 4 Maths Chapter 10 Play With Patterns
NCERT Solutions For Class 4 Maths Chapter 11 Tables And Shares
NCERT Solutions For Class 4 Maths Chapter 12 How Heavy ? How Light ?
NCERT Solutions For Class 4 Maths Chapter 13 Fields And Fences
NCERT Solutions For Class 4 Maths Chapter 14 Smart Charts
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