Question

the ratio of tin and Zinc in an alloy is 3 ratio 4 in twenty one gram of alloy find the quantity of tin and Zinc

Answer 1

Zinc+Tin=Alloy 21 grams
4:3=21 grams
(4+3)x3=21 gram
4x3 + 3x3 = 21 grams
Therefore,
12 grams Zinc and 9 grams Tin is 21 grams alloy