Question

A camp has food for 40 soldiers for 20 days . After 5 days 10 more soldiers joined then rest of the food will be sufficient for how many days ?

Answer 1

For 40 soldier = 20 days

After 5 days 10 more soldier added

For 59 soldier = ? Days

So it is a inverse propotional

------------------------------

X | 40 | 50 |

Y | 20 | x |

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=> X x Y

=> 40 x 20

=> 800

=> 50 x x = 800

=> 16 days

So, for 50 soldiera the food last for 16 days