A shop owner sells 60mtr of cloth and gains SP of 10 mtrs. Find the gain %?	Answers:	A) 20 %	B) 40 %	C) 50 %	D) 60 %	E) 70 %

Rationale: "here , selling price of 10 m cloth is obtained as profit . profit of 10 m cloth = ( s . p . of 60 m cloth ) – ( c . p . of 60 m cloth ) selling price of 50 m cloth = selling price of 60 m of cloth let cost of each metre be rs . 100 . therefore , cost price of 50 m cloth = rs . 5000 and s . p . of 50 m cloth = rs . rs . 6000 profit % = 10 / 50 × 100 = 20 % 20 profit of 20 % was made by the merchant . a"
Answer: A