Question

An alloy contains 15% Zinc, 45% Tin and the rest Iron. Find the quantity of Iron in 2 kg of this alloy.

• A. 0.8 kg
• B. 0.9 kg
• C. 1.2 kg
• D. 1 kg

Answer 1

The correct option is A

0.8 kg

Percentage of Zinc + Tin = 15 + 45 = 60%

$\therefore$ Percentage of Iron = 100 - 60 = 40%

Quantity of Iron in 2 kg of alloy = $\frac{40}{100}\times 2$ = $\frac{80}{100}$ = 0.8 kg