Consider a number 10 larger than the larger of the two numbers. It will be 5 times the smaller, and its sum with the smaller will be 96 (that is, 10 more than 86). Then the smaller number is 1/(1+5)×96 = 16. The larger number is 86-16 = 70
smaller number: 16
larger number: 70
_____
You can write equations
y = 5x - 10
y + x = 86
Substitute the first equation into the second:
5x - 10 + x = 86
6x = 96
x = 16 . . . . as above
