Question

Tick
Exercise 4.1
the correct answers
Inlet pipe of a tank is pouring water at 6 litres per
empty tank in 4 hours. With both points open tank gets
uning water at 6 litres per minute while a leakage is taking out water so that it could
(a) 1920 litres
with both points open tank gets filled in 12 hours. Find the concity of the tank
An outlet empties
(b) 1080 litres (c) 2160 litres
the given tank?
of a tank in one hour How much time w
a tank in one hour How much time will it take to empty a tank twice the
d) 2240 tres
of
(a) 5 hours
Two taps can fill a tank in 6 hours together. A tap takes shou
(6) 7 hours
(c) 10 hours
long will 'B' take to fill it?
k in 6 hours together. A tap takes 5 hours less than 'B' to fill the tank alone How
(6). 14 hours
(a) 12 hours
(b) 13 hours (c) 15 hours (d) 17 hours
wo pipes A and 'B' can fill a tank in 4 minutes and 8 minutes respectively. Starting with
are opened alternatively for one minute. How much time will it take to hit the tank
(a) 2 minutes o (b) 23 minutes (c) 3 minutes
A pipe fills a cistern in 10 hours while another empties it in 6 hours. Calculate time taken to empty the
in 3 minutes
tank if both are open.
(a) 13 hours
(b) 15 hours (c) 16 hours (d) 17 hours
A tap with diameter x' can empty a tank in 20 minutes. How long will a tap with diameter 2 takes to do
the same?
(a) 20 minutes
(b)
40 minutes
(c) 10 minutes
(d) 5 minutes
Three taps when opened together can fill a tank in 10 minutes. 1" tap can fill it alone in 30 minutes while
2 tap can fill the tank in 40 minutes. How long will the 3 tap take to fill the tank?
(a) 21 minutes
(b)
24 minutes
(c) 26 minutes
(d) 28 minutes
If a leakage can empty a tank in 20 hours and a tap can fill the same tank in 12 hours, calculate time
required to fill the tank.
(a) 20 hours
(b)
24 hours
(c) 30 hours
d) 36 hours​

Answer 1

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