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there are 600 soldiers and food supply they have is sufficient for 30

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there are 600 soldiers and food supply they have is sufficient for 30  [#permalink]

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New post 10 Mar 2019, 06:45
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A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

62% (02:14) correct 38% (02:29) wrong based on 21 sessions

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In a oregon, there are 600 soldiers and food supply they have is sufficient for 30 days. After 10 days, 200 more soldiers join. If rate of food consumption is same for every soldier, then how long will the food supply last after these 200 soldiers joined.

A. 16 days
B. 14 days
C. 32 days
D. 15 days
E. 21 days
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Re: there are 600 soldiers and food supply they have is sufficient for 30  [#permalink]

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New post 10 Mar 2019, 09:40
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Total amount of food supplies available for 30 days = 600*30 = 18000 units
In 10 days 600 soldiers consume 600*10, i.e, 6000 units. Remaining is 12000 units.
Now, 200 soldiers join. Total = 800
Number of days = 12000/800 = 15 days.

D is the answer.
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Re: there are 600 soldiers and food supply they have is sufficient for 30   [#permalink] 10 Mar 2019, 09:40
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there are 600 soldiers and food supply they have is sufficient for 30

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