E) of these4,If 40 % of a number is added to 42 then the result is th – InterviewSolution

1.

E) of these4,If 40 % of a number is added to 42 then the result is the number itself. Thnumber is?(A) 82(E) of these(B) 105(C) 70(D) 72

Answer»

let number be x so40% of x + 42 = x2/5 × x + 42 = x42 = x -2x/542 = 3x/5 x = (42×5)/3x = 70option c is correct

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