Question : Directions: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
5, 10, 20, 40, 80, ?
Option 1: 120
Option 2: 140
Option 3: 150
Option 4: 160
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Correct Answer: 160
Solution :
Given:
5, 10, 20, 40, 80, ?
In the above-given series, multiply the previous term by 2 to obtain the next term.
5 × 2 = 10, 10 × 2 = 20, 20 × 2 = 40, 40 × 2 = 80, 80 × 2 = 160
So, 160 is the missing term in the given series. Hence, the fourth option is correct.
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