Question

Please solve it fast...

Answer 1

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No. of men = 1200 [x1]

No. of days = 72

If 100 men leave after 17 days then,

No of men

= 1200 - 100

= 1100 [x2]

No of days

= 72 - 17

= 55 [y1]

Let y2 = x

Using x1 y1 = x2 y2

= 1200 × 55 = 1100 × x

= 66000 ÷ 1100 = x

= 60 = x

So , the food will last for 60 days

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