If 8 ◊ 4 = 6 and 12 ◊ 6 = 9, then 20 ◊ 10 = ?
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Correct answer: (B) 15
Explanation
a ◊ b = (a + b) ÷ 2 → 12÷2=6, 18÷2=9, so 30 ÷ 2 = 15.
From DSSSB TGT Computer Science Full Mock Test 4
This is question 31 of DSSSB TGT Computer Science Full Mock Test 4. 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.