In the following question, select the number/symbol that will replace the question mark (?) to complete the analogy:
100: 625 :: 80 : ?
Show answer & explanation
Correct answer: C
Explanation
100 = 10²
625 = 25²
That is, converting 100 to (100 × 25) / 4 = 625
Similarly:
80 × 25 / 4 = 20 × 25 = 500
100 → 625 ⇒ × 6.25
80 × 6.25 = 500