What comes next in the series: 5, 10, 20, 40,?
Correct answer: C. 80
- A. 60
- B. 70
- C. 80
- D. 100
Explanation
This is a geometric progression where each number is the previous number multiplied by 2. The next term in the series is 40 × 2 = 80.
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Logical problems present several conditions about people, objects, events or choices and require their possible arrangements to be tested. They cover constraint-based reasoning, rankings, matching, grouping, scheduling and elimination, with attention to the difference between a complete solution and a possibility that merely satisfies one condition.
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