Question

By selling a stool for rs 135 a carpenter losses 10% how much % would he gain or losse by selling it for rs 165

Answer 1

SP = 135

CP = a

135/a   x 100 = 90

a = 13500/90 = 150

CP = Rs. 150

He gains if he sells it for 165 by 165 -150 = Rs. 15

in percent  = 15/150  x 100 = 10%

He gains 10% by selling if for Rs. 165