Civil Services Prep

Prelims 2026 · CSAT / Quantitative Aptitude · Question 57

In a sequence of numbers, each number other than the first two is the sum of the two immediately preceding numbers from it. If the first two numbers in the sequence are 4 and 7, then the sixth number is<br/>

  1. 29
  2. 37
  3. 43
  4. 47

Answer

47

The sequence is formed by adding the previous two terms: 4, 7, 11, 18, 29, 47. Hence the sixth number is 47.

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