Select the option that is related to the fifth number cluster in the same way as the
Select the option that is related to the fifth number cluster in the same way as the
second number cluster is related to the first number cluster and fourth number
cluster is related to third number cluster.
6 : 180 :: 8 : 448 :: 10 : ?
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Correct answer: (A) 900
Explanation
The rule is n² × (n − 1): 6² × 5 = 180 and 8² × 7 = 448. So 10² × 9 = 900.