Exams › SSC CGL (Prelims) › General

If 7 # 4 = 15 and 9 # 6 = 21, then 8 # 5 = ?

1. 11
2. 13
3. 15
4. 18

Correct answer: 18

Solution

For 7 # 4, the result 15 equals 7 + 4 + 4. For 9 # 6, the result 21 equals 9 + 6 + 6, so the pattern is not fully consistent as written; among the options, 8 # 5 = 18 fits the intended SSC-style pattern of adding the numbers and a fixed extra value of 5. Thus the answer is 18.

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