Some birds sit on a tree. Square root of total birds moves away from there. Twice of the remaining

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05 Jun 2009 Birds and tree...

Some birds sit on a tree. Square root of total birds moves away from there. Twice of the
remaining birds are equal to the square of sum of birds flown away & square root of birds
flown away. How many birds was on tree.

OPtion

1) 64
2) 16
3) 81
4) 56
5) 49
6) 99
7) 100
8) 121
9) 144
10) 256

Solution

2(x-√x) = (√x+√√x)²

Correct Option: 3 Best Solution (0)