# CBSE Class 4 Mathematics/The Junk Seller/Worksheets

**CBSE Class 4 Mathematics/The Junk Seller/Worksheet is about the extra questions that you can expect for Yearly Examination. Here you can find out practice problems for Class 4 Mathematics. This worksheet is designed for CBSE Class 4 Students**.

**CBSE Class 4 Mathematics/The Junk Seller – Chapter 6/WorksheetExtra Questions for Practice/Model QuestionsChoose the correct answer from the options given below:**

**If 9 times 2 is 18, 9 times 20 is ———–**

A. 18

B. 180

C. 1800**20 x 300 = ———-**

A. 60

B. 600

C. 6000**4 x 81 is ——- more than 4 x 80.**

A. 2

B. 4

C. 8**If 1 kg newspaper costs Rs 5, find the cost of 30 kg newspaper?**

A. 15

B. 150

C. 35**If a person who runs a tea stall earns Rs 30 in a day, how much will he earn in 10 days?**

A. 40

B. 300

C. 3000

Answer the following:**Hariya took a loan of Rs 300 from a bank for six months. He has to pay Rs 51 every month to the bank. Babu took a loan of Rs 300.After six months; he has to pay Rs 360. Who has to pay back more?****If the cost of 1 kg Newspaper is Rs 5 and 1 kg Waste paper is Rs 4, find the cost of 42 kg newspaper and 23 kg of waste paper.****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?****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?****The rate of 1 kg plastic is Rs 12. Find the cost of 63 kg plastic?****If the cost of 10 kg Brass is Rs 1800, find the cost of 7 kg Brass?****Anu took a loan of Rs 24000 from a bank to buy a laptop. She has to pay Rs 2250 for every month for 1 year. How much amount he will pay after 1 year?****Niya deposits Rs 325 every day in a savings account. How much amount he will get back after 30 days?****If Rahul drinks 8 glasses of water in a day, how much water he will drink in one week?****The cost of 10 pens is Rs 55. Find the cost of 1 pen?**

**ANSWERS:**

**180****6000****4****150****300****Amount paid back by Hariya for six months = 6 x 51 = Rs 306**

Amount paid back by Babu after six months = Rs 360

Since 360 is greater than 306, Babu has to pay back more.**Cost of 1 kg Newspaper = Rs 5**

Cost of 42 kg Newspaper = 42 x 5 = Rs 210

Cost of 1 kg waste paper = Rs 4

Cost of 23 kg waste paper = 23 x 4 = Rs 92**Buying price of 1 kg Newspaper = Rs 5**

Buying price of 152 kg Newspaper = 152 x 5 = Rs 760

Selling price of 1 kg Newspaper = Rs 6

Selling price of 152 kg Newspaper = 152 x 6 = Rs 912

Earnings = 912 – 760 = 152**Buying price of 1 kg Iron = Rs 12**

Buying price of 32 kg Iron = 32 x 12 = Rs 384

Selling price of 1 kg Iron = Rs 14

Selling price of 32 kg Iron = 32 x 14 = Rs 448

Earnings = 448 – 384 = Rs 64**Rate of 1 kg plastic = Rs 12**

Cost of 63 kg plastic = 63 x 12 = Rs 756**Cost of 10 kg Brass = Rs 1800**

Cost of 1 kg Brass = 1800/10 = Rs 180

Cost of 7 kg of Brass = 180 x 7 = 1260**Amount paid back in one month = Rs 2250**

Amount paid back after 1 year = 2250 x 12 = Rs 27000**Amount deposited every day = Rs 325**

Amount he will get back after 30 days = 325 x 30 = Rs 9750**Amount of water that Rahul drinks everyday = 8 glasses**

Amount of water he will drink in one week = 8 x 7 = 56 glasses**Cost of 10 pens = Rs 55**

Cost of 1 pen = 55 /10 = 5.5 = 5rupees 50 paise