6 : 42 :: 8 : ?
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Correct answer: (C) 72
Explanation
n : n × (n+1) → 6 × 7 = 42, so 8 × 9 = 72.
From DSSSB TGT Computer Science Full Mock Test 1
This is question 28 of DSSSB TGT Computer Science Full Mock Test 1. 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.