A man purchases 2 pens for $ 56. He sells one at 20% profit and the other at a loss of 15%. He neither gains nor loses on the whole. Thus, the cost price of two watches are :  Choose the most appropriate option: A) $ 24 and $ 32 B) $32 and $ 24 C) $56and $32 D) $56 and $24 E) $32 and $ 56
x + y = 56--- (1)   1.20x + 0.85y = 56 --- (2)   (2) - (1) --&gt; 0.20x - 0.15y = 0   20x = 15y   x/y = 3/4= (3*8)/(4*8) = 24/32   $ 24 and $ 32nswer:$ 24 and $ 32
<result>A</result>
A man purchases 2 pens for $ 56. He sells one at 20% profit and the other at a loss of 15%. He neither gains nor loses on the whole. Thus, the cost price of two watches are :