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07-11-2020
Mathematics

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In school the ratio of the number of pupils to the number of teachers is 20:1 of the number of pupils is 840 how many teachers are there

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virtuematane virtuematane

07-11-2020

Answer:

Step-by-step explanation:

Given ration of pupils and teachers =20:1

Let the no. Of teachers =X

So no.of pupils =20X

No.of pupils=840

20X=840

X=840/20

X=42

No.of teacher =X

=42.

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