QUESTION

CSAT

Easy

Maths

Prelims 2026

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

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Explanation

Answer: 47

Each term is the sum of the two preceding terms.

$a_1 = 4$
$a_2 = 7$
$a_3 = 4 + 7 = 11$
$a_4 = 7 + 11 = 18$
$a_5 = 11 + 18 = 29$
$a_6 = 18 + 29 = 47$

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