Answer:
Altogether Gavin and Jim won £95.
Step-by-step explanation:
We are given the following in the question:
Ratio of money won by Gavin and Jim = 5:2
Gavin gets £39 more than Jim.
Let x be the amount of money Won by Jim.
Then, money won by Gavin =

Thus, we can write the equation:

Solving, we get,

Thus, Gavin won £65 and Jim won £26.
Money won altogether =

Thus, altogether Gavin and Jim won £95.