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Question:
There are four people A,B,C and D at the river bank and there is a boat, each one row the boat in different speed. To cross the rever takes them in 1min, 2 min, 5min and 10 mins respectively.
Boat capacity is only two people. If boat A and C then to cross the rever takes 5 mins.
Question is, you have to plan them in such a way that everyone should cross the river in 17 minutes.
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Answer:
A ---- 1 min
B --- 2 Min
C --- 5 Min
D --- 10 Min
1) A & B other side -- 2 min
2) A comes back with flash lite -- 1 min, total - 3min
3) C & D go to other side -- 10 min , total - 13 min
4) b come back with flash lite - 2 min, total - 15 min
5) A & B go to other side - 2 min, total - 17 mins
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