RRB NTPC 29 April 2016 Paper

Question : 80 of 100

Marks: +1, -0

If selling price is ₹ 84 & gain percentage = 20% Calculate the cost price.

Solution:

(1) S.P. = 84 Gain = 20% C.P. = x

\ { 120 } /{ 100 } x = 84

x = { 5 } /{ 6 } × 84 = 70

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