(3) Find the geometric mean of 4 and 25.(4) Find x if x + y = 5, and x – InterviewSolution

1.

(3) Find the geometric mean of 4 and 25.(4) Find x if x + y = 5, and x-y = 7

Answer»

1) geometric mean of 4 and 25 = (4*25)^2 = (100)^2 = 10

2) x + y = 5..... (1) x - y = 7..... (2)

Add eq(1) and eq(2)2x = 12x = 6

Value of x = 6

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