• question_answer 21) By selling a watch for Rs. 1440, a man loses 10%. At what price should he sell it to gain5%? A)  Rs. 1680B)  Rs. 1540        C)  Rs. 1320                      D)  Rs. 1750

(a): $C.P\left( watch \right)\text{=}\frac{1440/-}{0.9}=1600/-$ To gain $5%S.P=1600\times 1.05=1680/-.$