Question

the ratio of teachers and students in g.p.s.laheriasarai is 1:25. if 356 more students come than the ratio becomes1:28.find the number of teachers in the school​

Answer 1

Step-by-step explanation:

Given:-

The ratio of teachers and students in g.p.s.laheriasarai is 1:25. if 356 more students come than the ratio becomes1:28.

To find:-

Find the number of teachers in the school ?

Solution:-

The ratio of teachers and students in a school = 1:25

Let the number of teachers be X

Let the number of students be 25X

Number of students added = 356

Then , The total number of students = 25X+356

The ratio becomes =1:28

=>X:(25X+356) = 1:28

We know that

a:b can be written as a/b

=>X/(25X+356) = 1/28

On applying cross multiplication then

=>28X = 25X + 356

=>28X - 25 X = 356

=>3 X = 356

=>X = 356/3

=>X = 118.66...~ 119

Number of teachers = 119

Answer:-

Number of teachers in the school = 119

Additional information:-

• If the number of students is increased then the number of teachers is also increased and they are in direct Proportional.

Answer 2

Answer:

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