The ratio of zinc and copper in an alloy is 9:7 If the weight of copper in the alloy is 9.8 kg Find the weight of zinc in it ?
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Ratio of zinc and copper = 9;7
Let the ratio be 9x : 7x
Weight of copper = 9.8 kg=9800 g
=> 7x = 9800 g
=> x = 9800g/7=1400g=1.4 kg
=> 9x(Weight of zinc) = 9 * 1.4 kg = 12.6 kg
Let the ratio be 9x : 7x
Weight of copper = 9.8 kg=9800 g
=> 7x = 9800 g
=> x = 9800g/7=1400g=1.4 kg
=> 9x(Weight of zinc) = 9 * 1.4 kg = 12.6 kg
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