the coach of a cricket team buys 7 bats &6balls for 3800 rupess .later she buys 3 bats and 5 balls for 1750 rupess. find the cost of each bat &each ball.
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cost(bat)=500 and cost (ball)=50
let x be cost of bat and y be cost of ball.
therefore , 7x+6y=3800 _(1)
and. 3x+5y=1750. _ (2)
(1)*5-(2)*6: 17x=8500
x=8500/17=500
y=(3800-7x)/6=(3800-3500)/6=300/6=50
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