Let C be the capital in fixed amount
W be the weekly subsidy and ‘s’ be the weekly wage for each man.
Then from given condition (first), C + 52W = 42 × 52s...........(1)
From second condition C + 13W = 13 × 60s...........(2)
Solving (1) and (2) we get
39 W = 1404 s
W = 36s
and 3C = 3120 - 2184 = 936 s or C = 312 s
For 13 weeks, C +26w = m* 26s
312 s+ 936 s = m *26s
1248 s = m * 26 s
m = 1248/26 = 48
=> m= 48