Sundaram sold a memory card at a gain of 5%. If he had sold it at 63 less, he would have lost
2%. Find the cost of memory card.
Answers
Step-by-step explanation:
LET THE COST PRICE (C.P) BE = x. IN FIRST CASE. C.P= x. GAIN = 5 PERCENT. THEREFORE SELLING PRICE (S.P) =(100+ GAIN)× (C.P)/100. (100+5 PERCENT) × x/100. 105/100 × x/100. 105x/100. , IN SECOND CASE, C.P = x. ; LOSS=2 PERCENT. (100 - LOSS ) × (C.P/100) 100 -2 × x/100. ;=98x/100. NOW ACCORDING TO THE QUESTION; S.P AT 5 PERCENT GAIN - 63 = S.O AT 2 PERCENT LOSS. 105x/100 - 63 = 98x/100. 105x/100 -98x/100. =63. = 7x/100 = 63. , x= 63 × 100/7. ; x = 900