Question

4×5=15 7×2=12 2×8=08 20×10=??

Answer 1

20*10=200 - 10 so answer is 190

Answer 2

Given numbers are,
4×5=15,
7×2=12,
2×8=08
If we observe the answers carefully, we see that the product of two numbers is subtracted from the second number. As we can see in the first example that the product of 4 x 5 is 20 which is then subtracted from the second number i-e, 5 and we get 20 - 5 = 15
Now we have to calculate,
20x10 = ?
The product of 20x10 is 200
Now we subtract 200 from 10 and get,
200 - 10 = 190
So the answer is 190
Hopefully it helps. Thanks.