If 5 * 3 = 16 and 7 * 2 = 45, then 9 * 4 = ?
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Correct answer: (B) 65
Explanation
a * b = a² − b² → 25−9=16, 49−4=45, so 81 − 16 = 65.
From DSSSB TGT Computer Science Full Mock Test 2
This is question 31 of DSSSB TGT Computer Science Full Mock Test 2. 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.