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RahatRafi
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RahatRafi
There are 3 boats A,B and C, working together they carry 60 people in each trip. One day an early morning A carried 50 people in few trips alone. When it stopped carrying the passengers B and C started carrying the people together. It took a total 10 trips to carry 300 people by A,B and C. It is known that each day on an average 300 people cross the river using only one of the 3 boats A,B and C. How many trips it would take to A to carry 150 passengers alone?

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Options

A. 15

B. 30

C. 25

D. 10

E. None of these



Combined efficiency of all the three boats = 60 passengers /trip
Now, consider option (A)
15 trips and 150 passengers means efficiency of A = 10 passengers per trip
A's efficiency = 10 passengers per trip
Then, (B + C) combined efficiency = 50 passengers per trip
Since, combined efficiency is 60 so option (A) is correct

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