Multiple choice

There is some relationship between the two numbers on the left of the sign (::). The same relationship exists between the two numbers on the right of which one is missing. Find the missing number from the given alternatives.

6 : 210 : : 9 : -------.

  1. 210

  2. 120

  3. 620

  4. 720

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The sequence is n : n3 – n. The missing number is (93 – 9) = 729 – = 720.