Word problems

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

1. A train covers 144 km in 2 hours at a steady speed. What is its speed in km per hour?

2. In a class of 76 students, 75% are girls. How many boys are there?

3. In a class of 290 students, 60% are girls. How many boys are there?

4. Find the simple interest on Rs. 1500 at 4% per year for 3 years.

5. A tank is 19 m long, 15 m wide and 6 m deep. How many cubic metres of water can it hold?

6. A shopkeeper buys a bag for Rs. 820 and sells it for Rs. 920. What is the profit?

7. A student scored 47, 54, 85, 73, 61 in 5 tests. What is the average score?

8. A student scored 86, 54, 77, 79, 99 in 5 tests. What is the average score?

9. Find the simple interest on Rs. 2400 at 5% per year for 4 years.

10. A shopkeeper buys a bag for Rs. 230 and sells it for Rs. 280. What is the profit?

11. In a class of 310 students, 20% are girls. How many boys are there?

12. Find the simple interest on Rs. 1600 at 5% per year for 5 years.

13. A train covers 525 km in 7 hours at a steady speed. What is its speed in km per hour?

14. A student scored 49, 43, 64, 54, 40 in 5 tests. What is the average score?

15. 9 friends share a bill of Rs. 648 equally, and each also gives a tip of Rs. 9. How much does each friend pay in all?

16. A student scored 57, 71, 53, 83 in 4 tests. What is the average score?

17. In a class of 45 students, 40% are girls. How many boys are there?

18. A train covers 162 km in 6 hours at a steady speed. What is its speed in km per hour?

19. In a class of 345 students, 20% are girls. How many boys are there?

20. Find the simple interest on Rs. 2400 at 6% per year for 1 years.

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