A garrison of 500 men had provision for 27 days. After 3 days a reinforcement of 300 men arrived. For how many more days will the remaining food last now?
A
15
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B
16
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C
1712
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D
18
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Solution
The correct option is A15 Let'the remaining food will last for x days. 500 men had provisions for (27−3)=24 days. (500+300) men had provisions for x days. More men, less days ∴800:500::24:x ⇒800×x=500×24 ⇒x=500×24800=15