If a exceeds b by x%, then which one of the following equations is correct ?
A
$$a - b = \frac{x}{100}$$
B
$$b = a + 100x$$
C
$$a = \frac{bx}{100 + x}$$
D
$$a = b + \frac{bx}{100}$$
Correct Answer: $$a = b + \frac{bx}{100}$$
A exceeds b by x%⇒ a = b + x% of b
⇒ a = b +$$\frac{bx}{100}$$