The given data is regarding the number of paperback and hardbound books sold by four different book shops A, B, C and D:

Number of total books (hardbound and paperback together) sold by the highest selling shop is what percent higher than the lowest selling shop?

A50%

B100%

C120% ✓ Correct

D150%

Correct answer: (C) 120%

Explanation

Find each shop's total: A = 3500 + 2000 = 5500, B = 3900 + 5200 = 9100, C = 4400 + 5500 = 9900, D = 5500 + 6600 = 12100.

Highest is D at 12100 and lowest is A at 5500.

Percent higher = (12100 minus 5500) divided by 5500, times 100 = 6600 / 5500 times 100 = 120%.

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