Question

5% pupil in a town died due to some diseases
and 3% of the remaining left the town. If
2,76,450 pupil are still in the town; find the
original number of pupil in the town​

Answer 1

Answer:

Let x be the original number of the pupil in the town.

Percentage of pupil died =5%

Percentage of pupil alive =95%

Percentage of pupil remaining left the town =3%

Since 3% of this remaining 95% pupil left the town, the number of pupils still in town will be 97% of the remaining 95% pupil.

No. of the pupil in the town =276450

Now according to the question-

(

100

97

)×[(

100

95

)×x]=276450

⇒x=300000

Hence the original number of the pupil in the town was 3,00,000.

Answer 2

Answer:

Let x be the original number of the pupil in the town.

Percentage of pupil died =5%

Percentage of pupil alive =95%

Percentage of pupil remaining left the town =3%

Since 3% of this remaining 95% pupil left the town, the number of pupils still in town will be 97% of the remaining 95% pupil.

No. of the pupil in the town =276450

Now according to the question-

(

100

97

)×[(

100

95

)×x]=276450

⇒x=300000

Hence the original number of the pupil in the town was 3,00,000.

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