Question

If a*b means 2a + b , then what is 2*5 ?

7

9

12

14

none of these

Answer 1

Let us consider that a = 2 ; b = 5

So, 2a + b

Substitute,

2a + b

→ 2×2 + 5

→ 4 + 5

→ 9

Hope it helps you...

Answered by Benjemin

Answer 2

9

Explanation:

let a = 2

b = 5

2a + b

Substituting the values,

=> 2(2) + 5

=> 4 + 5

=> 9