A is 40% more than B, and B is 50% less than C. If C is 25% more than D, then A is what percentage less than D?
Answer & explanation
Correct answer: option 2
40% = \(\frac{2}{5}\)
50% = \(\frac{1}{2}\)
25% = \(\frac{1}{4}\)
A : D
40% ⇒ 7 : 5
50% ⇒ 1 : 2
25% ⇒ 5 : 4
7 × 1 × 5 : 5 × 2 × 4
7 : 8 = 1 (difference)
A is = \(\frac{1}{8}\) × 100 = 12.5 % less than D.