Find the missing number: 1, 2, 6, 24, 120, ?
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Correct answer: (A) 720
Explanation
×2, ×3, ×4, ×5, ×6 → 120 × 6 = 720 (factorial series).
From DSSSB TGT Computer Science Full Mock Test 5
This is question 21 of DSSSB TGT Computer Science Full Mock Test 5. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.