A is 40% less than B, and C is 40% of the sum of A and B. The difference between A and B is what percentage of C?

60.5% 64% 62.5% 60%

62.5%

Let the value of B be 100. Value of A = 100 × \(\frac{60}{100}\) = 60 Value of C = (60 + 100) ×  \(\frac{40}{100}\) = 64 Required difference = [ \(\frac{100-60}{64}\)] × 100 = 62.5%