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4. 6 pipes are fitted to a water tank. Some of these pipes are filling pipes and
others emptying pipes. Each filling pipe can fill the tank in 9 hours and each
emptying pipe will empty the tank in 6 hours. On opening all the pipes an empty
tank is filled in 9 hours. Find the no of filling pipes.
a. 3
b. 4
c. 5
d. 2
5. A man sold 2 watches for Rs 1000 each, he gains 12% on one and on the
other he losses 12%. Find how many % did he gain or loss in the above
transaction
a. losses at 1.44%
b. gains at 1.44%
c. neither loss nor gain
d. gains at 6%
6.If I walk at 4km/hr, I miss the bus by 10 min. If I walk at 5km/hr I reach 5 min
before the arrival of the bus. How far I walk to reach the bus stand.
a. 7.5
b. 5
c. 6
d. 4
7. A started the business with a capital of 10,000 and 4 months later, B joined
with a capital of 5,000. What is the share of A of a total profit of 2,000 at the end
of the year.
a. 1500
b. 1200
c. 800
d. 1100
8. A train consists of 12 bogies, each boggy 15m long. The train crosses a
telegraph post in 18 sec. Due to some problem, two bogies were detached. The
train crosses the telegraph post in
a. 18 sec
b. 12 sec
c. 14.5 sec d. 15 sec
9. A man leaves his house between 5 and 6 pm and gets back on the same day
between 6 and 7 pm and he notices that the hands of the clock have
interchanged. What is the time when he left ?
a. 5 min past 5
b. 32.31min past 5
c. 31.44 min past 5
d. 34 min past 5
10. A shopkeeper gets a profit of 20% on the marked price he decides to give a
5% discount on the marked price and he earns a profit of Rs. 15 for 5 articles
what is the cost price of one article?
a. 16 b. 14 c. 18 d. 20
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