Word problems

Read each problem carefully and write the answer with its unit.

1. The length of a rectangle is 21 cm and its breadth is 11 cm. What is its perimeter in cm?

2. A pen costs Rs. 21 and a book costs Rs. 36. What is the cost of 6 pens and 2 books?

3. A school has 10 boys and 12 girls. They sit 2 to a bench. How many benches are needed?

4. A shop had 146 cards. It sold 34 in the morning and 13 in the evening. How many cards are left?

5. A pen costs Rs. 14 and a book costs Rs. 44. What is the cost of 8 pens and 3 books?

6. A pen costs Rs. 16 and a book costs Rs. 65. What is the cost of 6 pens and 5 books?

7. A school has 18 boys and 27 girls. They sit 3 to a bench. How many benches are needed?

8. Kabir buys 3 toys at Rs. 38 each and pays with a Rs. 500 note. How much change is returned?

9. A pen costs Rs. 19 and a book costs Rs. 50. What is the cost of 5 pens and 4 books?

10. A car travels at 81 km per hour for 7 hours. How far does it travel in km?

11. A school has 8 boys and 24 girls. They sit 4 to a bench. How many benches are needed?

12. Kabir buys 2 toys at Rs. 46 each and pays with a Rs. 500 note. How much change is returned?

13. A pen costs Rs. 7 and a book costs Rs. 78. What is the cost of 5 pens and 2 books?

14. A school has 42 boys and 30 girls. They sit 6 to a bench. How many benches are needed?

15. A rectangular garden is 14 m long and 8 m wide. What is its area in square metres?

16. There are 8 packets with 12 biscuits in each. 42 biscuits are eaten. How many are left?

17. A car travels at 30 km per hour for 7 hours. How far does it travel in km?

18. A school has 28 boys and 20 girls. They sit 4 to a bench. How many benches are needed?

19. The length of a rectangle is 34 cm and its breadth is 28 cm. What is its perimeter in cm?

20. A rectangular garden is 15 m long and 4 m wide. What is its area in square metres?

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