allery1200 soldiers in a fort had enough food for 28 days. After 4 days, some soldiers left and the food then lasted 32 more days. How many soldiers left?
A280
B300
C320
D290
Answer & Solution
Correct answer: B. 300
1. Total food = 1200 x 28 = 33600 soldier-days. Used in 4 days = 1200 x 4 = 4800; remaining = 28800.
2. Remaining food lasts 32 days, so men = 28800 / 32 = 900.
3. Soldiers who left = 1200 - 900 = 300.
_Source: RRB Group D CEN-02/2018 PYQ, Q.41._
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