11-01-2022 Answers

 1. One pipe can fill a tank three times as fast as another-> 144 minutes

2. A motorboat whose speed is 15 kmph in still water-> 5 kmph

3. Two pipes A and B can fill a tank in 20 and 30 minutes-> 12 minutes

4. If a man swims downstream at 6 kmph and-> 4 kmph

5. A tank is filled in 5 hours by three pipes A-> 35 hours

6. The speed of the current is 2 kmph. A man can-> 3.75

7. A boat moves upstream at the rate of 1 km-> 2 kmph

8. Two pipes A and B can separately fill a cistern in 60-> 100 minutes

9. Gopal rows to a place 60 km distant in a boat-> 2 km/hr

10. A boatman goes 3 km against the current of-> 1.5 hrs

11. A boat takes 4 hours to go from A to B and-> 16 kmph and 8 kmph

12. What is the speed of the stream, if the ratio-> 1.5 km/hr

13. Two pipes fill a tank in 14 and 16 hours respectively-> 112 hours

14. Two pipes can fill a tank in 20 and 30 hours respectively-> 12 hours

15. A rescue boat goes 6 km against the current of the-> 1 hr 45 mins

16. Two pipes fill a tank in 8 hours and 2 hours respectively-> 8 hours

17. A cistern can be filled by a tap in 4 hours while-> 7 hours 12 minutes

18. A pump can fill a tank with water in 2 hours. Because-> 14 hours

19. Three pipes A, B and C can fill a tank from empty to full-> 6/11

20. Tap A and B can fill a tank in 10 and 15 hours respectively-> 2 hours

21. A boat travels 20 kms upstream in 6 hrs and 18 kms-> 7/12 kmph

22. If a pipe can fill the tank within 6 hrs but due to a-> 78 hours

23. A boat running upstream takes 9 hours to cover a-> 2:1

24. A can do a work in 40 days. A worked for 8 days-> 17 1/7 days

25. Two taps A and B can fill a tank in 5 hours and-> 36 hours

26. A boat covers 2 kms distance downstream in 1/2-> 1

27. In a stream running at 2 kmph, a motorboat-> 22 kmph

28. Two pipes can fill a tank in 20 and 24 minutes-> 120 gallons

29. A man rows to a place 60 kms far away and comes-> 7.5

30. What is the speed of the stream, if the ratio of the-> 1 km/hr

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