A) 15% |
B) 18% |
C) 21% |
D) 25% |
D) 25% |
Here, r = 16% and R = 5%
Therefore, Required percentage
= \( \Large \left(\frac{r+R}{100-r} \times 100\right) \)
= \( \Large \frac{16+5}{100-16} \times 100\%=\frac{21 \times 100}{84} \) = 25%