Question

300 gm of sugar solution has 40$\%$ sugar in it. How much sugar should be added to make it 50$\%$ in the solution?

• A. 20 gm
• B. 30 gm
• C. 40 gm
• D. 50 gm
• E. 60 gm

Answer 1

The correct option is E

60 gm

The existing solution has 40$\%$ sugar. Sugar is to be mixed so the other solution has 100$\%$ sugar, so by alligation method:

$\therefore \text{The two mixtures should be added in the ratio 5:1.}\text{Therefore, required sugar}=\frac{300}{5}\times 1=60gm$