Question

A sugar solution contains $15\%$ sugar by weight. When the solution is heated, $40\%$ sugar is left in the solution. The amount of water which is disappeared is:

• A. $0.0625g$
• B. $62.5g$
• C. $0.625g$
• D. $6.25g$

Answer 1

Answer: (B)

$62.5g$

Let the mass of solution $=100g$
Mass of sugar $=15g$
Mass of water $=100-15=85g$
On heating some amount water is disappeared and let the new amount of solution is $\left(X\right)g$, which contain $40\%$ sugar equal to $15g$
$X\times \frac{40}{100}=15$
$x=37.5g$
After heating mass of solution is $=37.5g$
Mass of water = Mass of solution - Mass of water
$=37.5-15=22.5$
Amount of water disappeared on heating
$=(85-22.5)=62.5g$