P's salary is 20% lower than Q's salary which is 20% lower than R's salary. By how much percent is R's salary more than P's salary?
A.48.75%
B.56.25%✓ Correct
C.60.50%
D.62.25%
Explanation
Let R's salary = 100. Then Q = 100 − 20% of 100 = 80. P = 80 − 20% of 80 = 80 − 16 = 64. R is more than P by (100 − 64)/64 × 100 = 36/64 × 100 = 56.25%.
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