Wasim bought two cricket bats for Rs. 840 and Rs.360 respectively. He sells the first bat at a gain of 15% and the second one at a loss of 5%. Find his gain or loss per cent in the whole transaction.
CP of first bat = Rs.840
SP of first bat
= (115 × 840) /100
= Rs.966
CP of second bat = Rs.360
SP of second bat
= Rs.342
CP of both the bat = 840 + 360
= Rs.1200
SP of both bats = 966 + 342
= Rs.1308
It is a case of Gain because SP is more than CP.
Gain = SP – CP
= 1308 - 1200
= Rs108
= 9%