The correct option is
A 47.51
The riddle is given as:
"A is 32.13 more than B and B is 42.31 less than 50."
Here, the riddle can be simplified into equations.
The equation for A can be formed as:
Similarly, the equation for B is formed as:
Calculating 50.00 - 42.31 using the standard method, we get:
Hence, B = 7.69
Now, A = B + 32.13
∴ A = 7.69 + 32.13
Calculating 7.69 + 32.13 using the standard method, we get:
Hence, A = 39.82
∴ Values are A = 39.82 and B = 7.69
So, A + B = 39.82 + 7.69
Calculating 39.82 + 7.69 using the standard method, we get:
∴ The value of A + B is 47.51.