Q. If 3#5 = -20, 1#4 = -30 and 6#5 = 10, then find the value of 4#9 = ?
A) -60
B) 70
C) -70
D) -50
✔ Correct Answer: -50
Exam Insight
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A) -60
B) 70
C) -70
D) -50
✔ Correct Answer: -50
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