1000 soldiers in a fort has enough food for 20 days. Some soldiers were transterred
to another fort and the food lasted for 25 days. How many soldiers were transferred?
IS 200
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0
Answer:
250
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Answer:
Let the number of soldiers transferred be = x
by unitary method
number of soldiers ║ days food lasted
-------------------------------------------------------------
1000 ║ 20
1000-x ║ 25
---------------------------------------------------
by inverse variation
1000 × 20 = (1000-x) × 25
1000 ×20/ 25 =1000 - x
800 = 1000 -x
x= 1000 - 800
= 200
∴200 soldiers were transferred to another fort.
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