Chain Rule Practice Test 2 with solutions

Question : 25 of 40

Marks: +1, -0

A fort has supply of foodstuff for 150 soldiers for 45 days. After 10 days, 25 soldiers leave. How long the food will last for the remaining soldiers at the same rate?

35 days
40 days
41 days
42 days

Validate

Solution:

Soldiers	Days
150	35
125	x+150

⇒

x/{35}

{150}/{125}

∴ x =

{150}/{125} × 35

= 42 days

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