For any two numbers a and b, the operation ‘◇’ is defined as a ◇ b = ab – a – b. What is the value of 6 ◇ 5?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 19
Put the first number in place of a and the second number in place of b in the rule a ◇ b = ab – a – b.
Here a = 6 and b = 5
\(ab=6\times5=30\)
6 ◇ 5 \(=30-6-5=19\)