Question

Mother's weight is $25\%$ more than of daughter. What percent is daughter's weight less than mother's weight?

• A. $10\%$
• B. $20\%$
• C. $30\%$
• D. $40\%$

Answer 1

The correct option is B $20\%$

Let daughter"s weight be $100$ kg
Then mother"s weight $=\left(\begin{array}{c}100+25\end{array}\right)$ kg $=125$ kg
If mother"s weight is $125$ kg, then daughter"s weight is $100$ kg.
If mother"s weight is $1$ kg, then daughter"s weight is $\frac{100}{125}$ kg
If mother"s weight is $100$ kg, then daughter"s weight $=\left(\begin{array}{c}\frac{100}{125}\times 100\end{array}\right)$ kg
Therefore, daughter"s weight is $20\%$ less than that of mother.