A can lay a railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in ____ ?

February 2, 2024 – by admin 0

Part of work completed by A and B in 4 days
= 4*((1/16) + (1/12))
= 7/12 C can complete 5/12th of the work in 4 days C can complete the whole job in
4÷(5/12) = 9.6 days

Twelve men can do a work in twenty days while twenty women can finish the same work in sixteen days. Find the ratio between the capacity of a man and a woman ?

February 2, 2024 – by admin 0

A. 5:3
B. 4:3
C. 3:4
D. 5:4

A and B can do a piece of work in 12 days; B and C in 15 days; C and A in 20 days. A alone can do the work in ____ ?

February 2, 2024 – by admin 0

A. 60 days
B. 50 days
C. 40 days
D. 30 days

A tap can fill a tank in 32 min. and another can empty it in 16 min. If the tank is already half full and both the tanks are opened together, the tank will be ____ ?

February 2, 2024 – by admin 0

A. 16 min
B. 24 min
C. 12 min
D. 7 min

A leak in the bottom of a tank can empty the full tank in 6 hrs. An inlet pipe fills water at the rate of 4 lit. a minute. When the tank is full, the inlet is opened and due to the leak, the tank is empty in 8 hrs. The capacity of the tank in liters is ____ ?

February 2, 2024 – by admin 0

A. 6,890 litres
B. 5,750 litres
C. 5,760 litres
D. None of them

P can do a work in the same time in which Q and R together can do it. If P and Q work together, the work can be completed in 10 days. R alone needs 50 days to complete the same work. then Q alone can do it in _____ ?

February 2, 2024 – by admin 0

A. 25 days
B. 15 days
C. 30 days
D. 20 days

10 men can complete a work in 7 days. But 10 women need 14 days to complete the same work. How many days will 5 men and 10 women need to complete the work ?

February 2, 2024 – by admin 0

A. 4
B. 7
C. 12
D. 17

P and Q need 8 days to complete a work. Q and R need 12 days to complete the same work. But P, Q and R together can finish it in 6 days. How many days will be needed if P and R together do it ?

February 2, 2024 – by admin 0

A. 3
B. 15
C. 25
D. 8

Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes ?

February 2, 2024 – by admin 0

A. 1800
B. 450
C. 2700
D. 1080

A alone can finish a work in X days. B alone can finish the same work in X+5 days. Together, they take 6 days to complete the work. Find X ?

February 2, 2024 – by admin 0

A. 5
B. 17
C. 35
D. 10