Basic Numeracy/Quantitative Aptitude

926. Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank in gallons is

	(a) 100
	(b) 110
	(c) 120
	(d) 140

927. 39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?

	(a) 10
	(b) 13
	(c) 14
	(d) 15

928. Anil does a work in 90 days, Bittu in 40 days and Chintu in 12 days. They work one after another for a day each, starting with Anil followed by Bittu and then by Chintu. If the total wages received are Rs 360 and Anil, Bittu, Chintu share them in the ratio of the work done, find their respective individual wages.

	(a) Rs 40, Rs 60 and Rs 260
	(b) Rs 36, Rs 81 and Rs 243
	(c) Rs 42, Rs 86 and Rs 232
	(d) Rs 38, Rs 88 and Rs 234

929. There are 12 pipes attached to a tank. Some of them are fill pipes and some are drain pipes. Each of the fill pipes can fill the tank in 12 hours, while each of the drain pipes will take 24 hours to drain a full tank completely. If all the pipes are kept open when the tank was empty, it takes 2 hours for the tank to overflow. How many of these pipes are drain pipes?

	(a) 6
	(b) 11
	(c) 4
	(d) 7

930. Rajesh walks to and fro to a shopping mall. He spends 30 minutes shopping. If he walks at speed of 10 km an hour, he returns to home at 19.00 hours. If he walks at 15 km an hour, he returns to home at 18.30 hours. How fast must he walk in order to return at 18.15 hours?

	(a) 17 km/hr
	(b) 18 km/hr
	(c) 19 km/hr
	(d) 20 km/hr

TOTAL

Detailed Solution

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