Question

12*31=8
42*72=9
34*53=13
22*16=?

Answer 1

Answer:

Hi

Step-by-step explanation:

It has mistakes in the question With the solution tooo cause ans is differnt!!!!

Answer 2

Given:

12*31=8

42*72=9

34*53=13

To find:

22*16=?

Solution:

In the given question there is some error. So, the correct way to define this equation answer as follows:

First way:

$\bold{12*31=8}\\\\\to 1\times 2 \times 1+3\\\\\to 2 \times 4\\\\\to 8\\\\\bold{42*72=9}\\\\\to 4\times 2 \times 7+2\\\\\to 8 \times 9\\\\\to 72\\\\\to 7+2\\\\\to 9\\\\\bold{34*53=13}\\\\\to 3\times 4 \times 5+3\\\\\to 12 \times 8\\\\\to 96\\\\\to 9+6\\\\\to 15\neq 13 \ It \ is \ false\\\\\bold{22*16=?}\\\\\to 2\times 2 \times 1+6\\\\\to 4 \times 7\\\\\to 28\\\\\to 2+8\\\\\to \boxed{10}$

Second way:

$\bold{12\times 31= 8}\\\\\to 372\\\\\to 3+7+2\\\\\to 10 \neq 8\\\\\bold{42\times 72= 9}\\\\\to 3,024\\\\\to 3+0+2+4\\\\\to 9 = 9\\\\\bold{34\times 53= 13}\\\\\to 1802\\\\\to 1+8+0+2\\\\\to 11 \neq 13\\\\\bold{22\times 16= ?}\\\\\to 325\\\\\to 3+2+5\\\\\to \boxed{10}$

The final answer is 10.