Aptitude Question Papers

31. A cistern can be filled by two pipes A and B in 4 hours and 6 hours respectively. When full, the tank can be emptied by a third pipe C in 8 hours. If all the taps be turned on at the same time, the cistern will be full in:

32. The sum of squares of two numbers is 80 and the square of their difference is 36. The product of the two numbers is:

33. If 300 men can do a piece of work in 16 days, how many men would do (1/5) of the work in 15 days ?

34. If 17 labourers can dig a ditch 26 metres long in 18 days, working 8 hours a day, how many more labourers should be engaged to dig a similar ditch 39 metres long in 6 days, each labourer working 9 hours a day ?

35.The ratio bears to (0.6 of Rs. 1.55) is:

36. At what time between 5.30 and 6 will the hands of a clock be at right

37. A contractor undertook to do a certain piece of work in 9 days. He employed certain number of labouters but 6 of them being adsent from the very first day, the rest could finish the work in 15 days. The number of men originally employed were :

38. A has to pay Rs. 220 to B after 1 year, B asks A to pay Rs. 110 in cash and defer the payment of Rs. 110 for 2 years. A agrees to it. Counting, the rate of interest at 10% per annum in this new mode of payment:

39. A is a working and B, a sleeping partner in a business, A puts in Rs. 12000 and B Rs. 20000. A receives 10% of the profits four managing, the rest being divided in proportion to their capitals, Out of a total profit of Rs. 9600, the money received by A is:

40. Half cubic metre of gold sheet is extended by hammering so as to cover an area of 1 hectare. The thickness of the sheet is :