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प्रश्न
A mess contractor can either serve 450 students with the meal that he prepares or can cater to 270 cops with the same meal. If 300 students have already eaten in the mess, how many cops can be fed with the remaining meal?
पर्याय
20
45
90
180
MCQ
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उत्तर
90
Explanation:
Let the total amount of meal is P.
Amount of meal required by each student
`="P"/450`
Amount of meal required by each cop
`="P"/450`
A meal took by 300 students
`=300/450 "P"=2/3 "P"`
Remaining meal `="P"-2/3"P"="P"/3`
Number of cops can be taken a meal in `"P"/3`
`=("P"/3)/("P"/270)=270/3=90`
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