Question

a alloy consist of 27/1/2 gm of copper and 2/3/4gm of tin . find the ratio by weight of copper to the alloy

Answer 1

Total weight of alloy=27/1/2+2/3/4
=121/4gm
Weight of copper=27/1/2gm(55/2)
Ratio of wt. of copper is to alloy=55/2÷121/4
=10:11