At a school fair 70% of people are under 16 years old. one third of the people remaining are teachers. if there are 21 teachers at the fair total?

let number of people at the fair be x.

As per the statement:

70% of people are under 16 years old

⇒

Remaining number =

Since,  one third of the people remaining are teachers

⇒Number of teachers at fair =

Also, it is given that the number of teachers at the fair are 21.

hence,

Multiply both sides by 10 we get;

x = 210

Therefore, total number of people at fair are. 210 people

c: lkllmn.

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