Answer: Option C
:
C
From statement V, number of women walking in US = number of women walking in India for both years
In the group 55-60 number of women walking in US = number of women walking in India = 10
In the group 60-65 number of women walking in US = number of women walking in India = 15
Let x, p be the number of Indian and US men walking in the age group 55-60
And let y, q be the number of US men walking in the age group 60-65
Thus, x+y=8 and p+q=8. Also, from statement IV, $\frac{x}{p}=\frac{y}{q}$
And x+p=6, y+q=10
Combining these three statements together, we get x=p=3 and y=q=5
From statement 3, Among the Indians the number of men in the age group 60-65 years who like cycling is the same as the number of men in the age group of 55-60 years who like jogging and also the same as the number of men in the age group 55-60 years who like walking = 3 and from statement 1, no woman in India does cycling and no woman in US does Yoga.
Continuing this way, we can fill the table as follows:

Also x+y=5
3+2x +a = 6 (given)
The only values which satisfy are for a=1, x=1. thus, the table can be filled as:


Now the questions can be answered

10+3=13