Cost of 4 balls and plastic bats is 100 rupees.3 times the cost of the ball is 15 rupee more than the cost of the bat find the cost of the dozen bat ball 0th
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4+3x+15=100
4+3x=100-15
4+3x=85
3x=85-4
3x=81
x=81/3
x=27
4+3x=100-15
4+3x=85
3x=85-4
3x=81
x=81/3
x=27
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