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A garrison of 1200 men has provisions for 15 days. How long will the provisions last if the garrison be increased by 600 men? - Mathematics

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Question

A garrison of 1200 men has provisions for 15 days. How long will the provisions last if the garrison be increased by 600 men?

Sum
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Solution

1200 men has provision for = 15 days

1 man will have that provision for = 15 × 1200 days

∴1200 + 600 = 1800 men will has that provisions for = `(15 xx 1200)/1800` days

= 10 days

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Chapter 7: Unitary Method (Including Time and Work) - Exercise 7 (B)

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Selina Concise Mathematics [English] Class 7 ICSE
Chapter 7 Unitary Method (Including Time and Work)
Exercise 7 (B) | Q 9
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