On increasing the price of T.V. sets by 80%, their sale decreases by 20%. What is the effect on the revenue receipts of the shop ?	Select the correct option
A) 44	B) 5	C) 56	D) 2	E) 7
Explanation:   Let the price be = Rs.100, and number of units sold = 100   Then, sale value = Rs.(100 × 100) = Rs.10000   New sale value = Rs.(180 × 80) = Rs.14400   Increase% =4400/10000 × 100 = 44%   44nswer: 44
<result>A</result>
On increasing the price of T.V. sets by 80%, their sale decreases by 20%. What is the effect on the revenue receipts of the shop ?