A material is purchased for Rs. 600. If one fourth of the material is sold at a loss of 20% and the remaining at a gain of 10%, Find out the overall gain or loss percentage Choose the most appropriate option:
A) 4 1/2 B) 3 1/2 C) 2 1/2 D) 1 1/2 E) None of these
Explanation:   We need to get the Total selling price to solve this question. Because after getting selling price we can get profit or loss, then we can calculate profit% or loss%   So lets solve this:   Price Received by selling one fourth of the material at a loss of 20% =   (1/4) * 600 * (80/100) = Rs. 120   Price Received by remaining material at a gain of 10% =   (3/4) * 600 * (110/100) = Rs. 495 [Note: 1-(1/4) = 3/4]   Total Selling Price = 120 + 465 = Rs. 615   Profit = 615 - 600= 
<gadget id="calculator">615 - 600</gadget>
<output>15</output>
15   Profit%=(Gain/2 1/2ost∗100)%=(15/600∗100)%=5/2%=2 1/2%   Option 2 1/2
<result>C</result>
A material is purchased for Rs. 600. If one fourth of the material is sold at a loss of 20% and the remaining at a gain of 10%, Find out the overall gain or loss percentage