Find the Missing Number in the series ?

PU-MET : Panjab University MBA Entrance Exam with MCQ Answers 2024

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42.

4 , 18 , ? , 100 , 180 , 294 , 448

A: 48

B: 50

C: 58

D: 60

The answer is: A

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The logic followed here is:

2^3 - 2^2 = 8 - 4 = 4

3^3 - 3^2 = 27 - 9 = 18

4^3 - 4^2 = 64 - 16 = 48

5^3 - 5^2 = 125 - 25 = 100

6^3 - 6^2 = 216 - 36 = 180

7^3 - 7^2 = 343 - 49 = 294

8^3 - 8^2 = 512 - 64 = 448

Hence, '48' is the correct answer.