A reduction of 42% in the price of bananas would enable a man to obtain 64 more for Rs.40, what is reduced price per dozen?
Pick.
A) 2.15
B) 8.15
C) 7.15
D) 3.15
E) 1.15
Explanation:   40*(42/100)= 
<gadget id="calculator">40*(42/100)</gadget>
<output>84/5 = around 16.8</output>
16.8 --- 64   ? --- 12=&gt; Rs.3.15   Answer: 3.15
<result>D</result>
A reduction of 42% in the price of bananas would enable a man to obtain 64 more for Rs.40, what is reduced price per dozen?