Question : Directions: In the following question, select the missing number from the given series.
10, 10, 20, 60, 240, ?
Option 1: 1150
Option 2: 1400
Option 3: 1200
Option 4: 1440
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Correct Answer: 1200
Solution :
Given:
10, 10, 20, 60, 240, ?
Multiply the previous term by consecutive natural numbers, to obtain the next term in the series –
10 × 1 = 10; 10 × 2 = 20; 20 × 3 = 60; 60 × 4 = 240; 240 × 5 = 1200
So, 1200 is the missing term in the series. Hence, the third option is correct.
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