Boy sells a book for Rs. 630 he gets a loss of 10 %, To gain 10%, what should be the SP? Answers
A) 430  B) 450  C) 550  D) 770  E) 660
Cost price = 630/90 x 100 = 700   To gain 10% = 700 x 10/100 = 70   SP = CP + gain = 700 + 70= 
<gadget id="calculator">700 + 70</gadget>
<output>770</output>
770   Answer :770
<result>D</result>
Boy sells a book for Rs. 630 he gets a loss of 10 %, To gain 10%, what should be the SP?