Word problems

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

1. In a class of 40 students, 75% are girls. How many boys are there?

2. A train covers 329 km in 7 hours at a steady speed. What is its speed in km per hour?

3. A student scored 43, 55, 88, 90 in 4 tests. What is the average score?

4. A train covers 168 km in 6 hours at a steady speed. What is its speed in km per hour?

5. A tank is 6 m long, 11 m wide and 12 m deep. How many cubic metres of water can it hold?

6. 7 friends share a bill of Rs. 112 equally, and each also gives a tip of Rs. 2. How much does each friend pay in all?

7. A train covers 84 km in 3 hours at a steady speed. What is its speed in km per hour?

8. A shopkeeper buys a bag for Rs. 570 and sells it for Rs. 420. What is the loss?

9. Find the simple interest on Rs. 1700 at 4% per year for 4 years.

10. 3 shirts cost Rs. 840 each. A discount of 10% is given on the total bill. What is the amount to pay?

11. 9 shirts cost Rs. 940 each. A discount of 25% is given on the total bill. What is the amount to pay?

12. 11 shirts cost Rs. 760 each. A discount of 20% is given on the total bill. What is the amount to pay?

13. In a class of 110 students, 40% are girls. How many boys are there?

14. A student scored 70, 56, 44, 45, 99, 46 in 6 tests. What is the average score?

15. In a class of 320 students, 75% are girls. How many boys are there?

16. A train covers 390 km in 5 hours at a steady speed. What is its speed in km per hour?

17. A shopkeeper buys a bag for Rs. 630 and sells it for Rs. 670. What is the profit?

18. A student scored 87, 67, 47, 95 in 4 tests. What is the average score?

19. 8 shirts cost Rs. 1060 each. A discount of 25% is given on the total bill. What is the amount to pay?

20. Find the simple interest on Rs. 2500 at 10% per year for 1 years.

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