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  1. A stock of food is enough for 240 men for 48 days. How long will the same stock last for 160 men?
    1. 54 days
    2. 60 days
    3. 64 days
    4. 72 days
Correct Option: D

M1 = 240, D1 = 48, M2 = 160 and D2 = ?
According to the formula,
M1D1 = M2D2
⇒ 240 x 48 = 160 x D2
∴ D2= (240 x 48)/160 = 72


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