Question : In an army camp, there is food provision for 500 cadets for 25 days. If 125 more persons join the army camp on the first day itself, then for how many days will the provision last?
Option 1: 20
Option 2: 15
Option 3: 10
Option 4: 25
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Correct Answer: 20
Solution :
Given: In an army camp, there is food provision for 500 cadets for 25 days, but 125 more persons join the army camp on the first day itself.
We know, $M_1D_1=M_2D_2$,
Where $M_1$ = 500, $D_1$ = 25 days, $M_2$ = (500 + 125) = 625
So, $D_2=\frac{500×25}{625}$ = 20 days.
Hence, the correct answer is 20.
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