if price of t.v set is reduced by 25%, then its sale increases by 75%, find net effect on sale value  Choose the correct choice from the following choices
A) 31	B) 32	C) 46	D) 47	E) 48
- a + b + ((-a)(b)/100)   = -25+75+(-25*75)/100   = -25+75-19= 
<gadget id="calculator">-25+75-19</gadget>
<output>31</output>
31   31NSWER:31
<result>A</result>
if price of t.v set is reduced by 25%, then its sale increases by 75%, find net effect on sale value