5gm of an alloy contains 3 3/4gms of copper and the rest is nickel. find the ratio by weight of nickel to copper
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amount of nickel = 5-15/4 gm
ratio(Ni:Cu) = (5/4)/(15/4) = 1/3⇒1:3
ratio(Ni:Cu) = (5/4)/(15/4) = 1/3⇒1:3
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