The ratio of P and Q in an alloy is 3 : 7. If the alloy is made of only P and Q, how much amount of Q will be there in 1800 kg of that alloy?
Total alloy = 1800 kg
The ratio of P and Q in an alloy is 3 : 7.
Amount of Q in alloy =Â $$\frac{1800}{10}\times7$$
= $$180\times7$$
= 1260 kg
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