A person purchases 90 clocks and sells 40 clocks at a gain of 10 % and 50 clocks at a gain of 20 % . If he sold all of them at a uniform profit of 15 % , then he would have got ₹ 40 less. The cost price of each clock is:
A. ₹ 50
B. ₹ 60
C. ₹ 80
D. ₹ 90
Answer:C
A person purchases 90 clocks and sells 40 clocks at a gain of 10 % and 50 clocks at a gain of 20 % . If he sold all of them at a uniform profit of 15 % , then he would have got ₹ 40 less. The cost price of each clock is:
A. ₹ 50 B. ₹ 60 C. ₹ 80 D. ₹ 90