Question

the length of the third side.
9. In a school 2\5 of the students are below 10 years,3/10 are between 10 years to 15 years to and the
remaining are above 15 years. What part of the students are above 15
years.​

Answer 1

Answer:

Let total number of students be x and number of students above 15 years be y. Then,it is given

(2/5)x+(3/10)x +y=x

(7/10)x +y=x

y=x-(7/10)x=(3/10)x

y/x=3/10 Ans