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There are $800$ soldiers in an army camp. There is enough provision for them for $60$ days. If $400$ more soldiers join the camp how many days will the provision last.

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30

40

50

60

answer is A.

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Detailed Solution

This provision can mainly provide

800

soldiers for

60

days
Now if there is only

1

soldier then we find how many days he can give:

800

soldiers =

60

days

1

soldier

= 60 \times 800 = 48, 000

days
Now let us find the total number of soldiers
Total number of soldiers

= 800 + 400 = 1200

Find how many days he can provide for

1200

soldiers

1

soldier

= 48, 000

days

1200

soldier

= 48000 \div 1200 = 40

days
The provision made here can last up to

40

days.

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There are 800 soldiers in an army camp. There is enough provision for them for 60 days. If 400 more soldiers join the camp how many days will the provision last.

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There are $800$ soldiers in an army camp. There is enough provision for them for $60$ days. If $400$ more soldiers join the camp how many days will the provision last.