Answer:
25 Minutes
Explanation:
Let time to setup small tent be denoted by S
Let time to setup Large tent be denoted by T
From the given information:
3S + 1T = 115 -- i
2S + 2T = 130 -- ii
Now these are two linear equations which can be solved
from (i)
T = 115-3S
add value of T in (ii)
2S + 2(115-3S) = 130
2S + 230 -6S = 130
Solving for S
4S = 100
S= 25