Question

if 5,3=28 9,1=810. 8,7=115 6,2=48.then 7,5=?

Answer 1

Since, it is given that 5,3 = 28

2 is the difference of first and second digit that is (5-3) and 8 is the sum of first and second digit(5+3).

Now, consider 9,1 = 810

8 is the difference of first and second digit that is (9-1) and 10 is the sum of first and second digit(9+1).

Now, consider 8,7 = 115

1 is the difference of first and second digit that is (8-7) and 15 is the sum of first and second digit(8+7).

Now, consider 6,2 = 48

4 is the difference of first and second digit that is (6-2) and 8 is the sum of first and second digit(6+2).

Now, consider 7,5

Since, 2 is the difference of first and second digit that is (7-5) and 12 is the sum of first and second digit(7+5).

So, the number is 212.

Therefore, 7,5 = 212.