We are given the equation:
\[ B = \frac{5}{2} A \]
Rearrange the equation to solve for \( A \):
\[ A = \frac{2}{5} B \]
The percentage of \( A \) in \( B \) is given by:
\[ \frac{A}{B} \times 100 \]
Substituting \( A = \frac{2}{5} B \):
\[ \frac{\frac{2}{5} B}{B} \times 100 \]
Canceling \( B \):
\[ \frac{2}{5} \times 100 = 40\% \]
Thus, the correct answer is 40% (Option A).
A positive integer $m$ is increased by 20% and the resulting number is 1080. Then the integer $m$ is
A software company lays off 40% of its employees. Among the laid-off employees, 20% are developers. The percentage of laid-off developers from the total employees of the company is
If one-fourth of a number exceeds 20% of the number by 10, then the number is
Arun’s present age in years is 40% of Barun’s. In another few years, Arun’s age will be half of Barun’s. By what percentage will Barun’s age increase during this period?