Q. 164.3( 14 Votes )

A number decrease A. 58

B. 110

C. 120

D. 135

Answer :

Let the number = Z


Z - (of Z) = 87


Z - (Z × 55/2 × 1/100) = 87


Z - (Z × 11/2 × 1/20) = 87


Z- (11Z/40) = 87


29Z/40 = 87


29Z/40 = 87


Z = 87 × 40/29


Z = 120

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