Answer:
45 days
Explanation:
30men=15days
1man=15×30
1man=450days
10men=450÷10
10men=45days
I think that's it
45 men
A job takes 30 men for 15 days to complete so it takes x men to do the same job in 10 days
30(15) = x(10)
450 = 10x
x = 450/10
x = 45
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