The coach of a cricket team bought 7 bats and 6 balls for Rs. 3800. Later, she bought 3 bats and 5 balls for Rs. 1750. Find the cost of each bat and each ball.
Wasim bought two cricket bats for Rs.560 and Rs. 240 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.