3 policemen and 3 thieves had to cross a river using a small boat. Only two can use the boat for a trip. All the 3 policemen and only 1 thief knew to ride the boat. If 2 thiefs and 1 policeman were left behind they would kill him. But none of them escaped from the policemen. How would they be able to cross the river?

JOBI JOSEPH

• Jul 29th, 2017

Cant do the answer because if only one person (thief) can drive the boat then if he drops either one thief or police the other end then he doesnt have to come back to pick others and escape.

Tommie

• Sep 29th, 2016

2 police in the boat, 1 police and 3 robbers hold onto the side

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A man bought some horses, cows and goats. They were 100 in number(totally). If it costed Rs.100 to buy those 100 animals and the cost of a horse, a cow and a goat was Rs.10,Rs.3, 50 paise respectively,how much horses goats and cows did he buy?

Kartik Kandiwalsa

• Jul 30th, 2017

X be horses, y be cows, z be goats
According to given condition
x+y+z=100
10*x+3*y+0.5*z=100
Subtracting eqn 1 from eqn 2
19*x+5*y=100
Only possible integers values are x=5 and y=1
Hence z=94
So 5 horses 1 cow and 94 goats

shiva

• Apr 27th, 2017

4 Rs. 1 Book
25 p. 1 Pencil
50 p. 1 Pen

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