Question

7+5+2+1=63 5+4+3+2=75 4+2+3+1=?

Answer 1

1. 7 + 5 + 2+1 = 63

Rule→sum of last two digits = 2 +1=3

5+1=6

2. 5 + 4 + 3+ 2

Rule → sum of last two digits =3+2=5

5+2=7

4+3=7

3. 4 +3 +2+1

sum of last two digits = 2 + 1=3

4+1=5

3+2=5

Answer should be 53.