Question

62+51=16,91+85=24,53+82=12,72+83=25then73+83=?

Answer 1

Answer is 20

6 – 2 = 4;  5 – 1 = 4

Now  4 * 4 = 16

Similarly , 7-3=4; 8-3=5

4 * 5 = 20.