Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
2, 10, 40, 120, 240, ?
Option 1: 480
Option 2: 300
Option 3: 360
Option 4: 240
Correct Answer: 240
Solution :
Given:
2, 10, 40, 120, 240, ?
In the above-given series, multiply the numbers by the consecutive natural numbers (in decreasing order) –
2 × 5 = 10; 10 × 4 = 40; 40 × 3 = 120; 120 × 2 = 240; 240 × 1 = 240
So, the missing number is 240. Hence, the fourth option is correct.
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