Camels
Level
pending
One- fourth of a herd of a camel was seen in the forest. Twice the square root of the herd had gone to mountain and the remaining 15 camel were seen on the bank of the river .Find the total number of the Camels.
50
18
6
36
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1 solution
Just check which of the options is a perfect square:-) or the proper method would be : 4 x + 2 x + 1 5 = x 》 》 2 x = x − 4 x − 1 5 》 》 2 x = 4 3 x − 6 0 》 》 4 x = 1 6 9 x 2 + 3 6 0 0 − 3 6 0 x 》 》 6 4 x = 9 x 2 + 3 6 0 0 − 3 6 0 x 》 》 9 x 2 − 4 2 4 x + 3 6 0 0 = 0 》 x = 1 8 4 2 4 + − 4 2 4 − 4 × 9 × 3 6 0 0 》 》 x = 1 8 4 2 4 + − 2 2 4 》 》 x = 1 1 . 1 1 1 Or x = 3 6 rejecting the non - integral value, x is 36.