Question

A watch was sold at a gain 10%. had it been sold for rs 65 more, the gain would have been 14% . find the cost price of the watch.

Answer 1

let CP be x
so SP= CP + gain
X + 10% of X
SP = 11X / 10

Acc to question

11x / 10 + 65 = X + 14% of X
11x + 650 / 10 = 12x / 5
65x = 3250
X = 50

So CP = Rs.50