Question

aurobindo sold his watch at 10% loss . if he had sold it for rs 54 more , he would have made 8% profit ,find the selling price  of the watch

Answer 1

S.P = C.P - (10/100)C.P
S.P = C.P - (1/10)C.P
S.P = (9/10)C.P
C.P = (10/9)S.P

S.P+54 = C.P + (8/100)C.P
S.P +54 = (27/25)C.P
C.P = (25/27)S.P + 50

(10/9)S.P = (25/27)S.P + 50
[(10/9)-(25/27)]S.P = 50
[(30-25)/27]S.P = 50
S.P = 10×27

S.P = ₹ 270
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Answer 2

Replace the value of 135 with 54