CUET UG 2025 — General Test Quantitative Reasoning

The sequence is: 3, 8, 13, 18, ...

The common difference can be found by:

8 - 3 = 5

13 - 8 = 5

18 - 13 = 5

The common difference $d = 5$d=5

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From the given arithmetic progression:

First term $a = 3$a=3

Common difference $d = 5$d=5

Term number $n = 18$n=18

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The nth term formula for an arithmetic progression is:

$$a_n = a + (n - 1) \times d$$an​=a+(n−1)×d

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Substituting the values:

$$a_{18} = 3 + (18 - 1) \times 5$$a18​=3+(18−1)×5

$$a_{18} = 3 + 17 \times 5$$a18​=3+17×5

$$a_{18} = 3 + 85$$a18​=3+85

$$a_{18} = 88$$a18​=88

Therefore, the 18th term of the arithmetic progression is 88.