Correct option is A
The pattern followed is,
For CAT + DOG = 50,
The place value of C is 3
The place value of A is 1
The place value of T is 20
And,
The place value of D is 4
The place value of O is 15
The place value of G is 7
CAT+ DOG (3 + 1 + 20) + (4 + 15 +7)
= 50
Similarly,
For BAT+HEN,
The place value of B is 2
The place value of A is 1
The place value of T is 20
And,
The place value of H is 8
The place value of E is 5
The place value of N is 14
BAT+HEN (2 + 1 + 20) + (8 + 5 + 14)
= 23 + 27
= 50

