First term a = 3, common difference d = 4, last term an = 407.
an=a+(n−1)d
407=3+(n−1)×4
(n−1)×4=404
n−1=101, so n = 102.
CUET UG 2023 — General Test Quantitative Reasoning
How many terms are there in the A.P. 3, 7, 11, ............ 407 ?
Held on 21 May 2023 · Verified 13 Jul 2026.
100
101
99
102
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