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If \( \Large a\ast b=a+b+ab \), then \( \Large 3\ast 4-2\ast 3 \) is equal to:

A) 6
B) 8
C) 10
D) 12

Correct Answer:


B) 8

Description for Correct answer:
\( \Large a \ast b = a + b + ab \)

\( \Large 3 \ast 4 = 3 + 4 + 3 \times 4 = 19 \)

\( \Large 2 \ast 3 = 2 + 3 + 2 \times 3 = 5 + 6 = 11 \)

Therefore, \( \Large 3 \ast 4 - 2 \ast 3 = 19 - 11 = 8 \)

Part of solved Elementary Mathematics questions and answers : >> Elementary Mathematics

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