Question

20×4=10
30×13=12
10×12=3
40×11=?

Answer 1

Answer:

20×4=10

30×13=12

10×12=3

40×11= 5.

Answer 2

Answer: 8

Step-by-step explanation:

Multiply the first number and last number , then add first number to the result.

2x4+2=10( 20×04= 10 )

Here , 1st number in 20 is 2 and last number in 04 is 4 )

Similarly do the following also,

3x3+3=12 ( 30×13= 12 )

1x2+1=3 ( 10×12 = 03 )

4x1+4=8 ( 40×11= 08 )