Question

There at 60 students in a speech contest. Yesterday, 2/3 of them gave their speeches. Today 1/4 of the remaining students gave their speeches. How many students still haven’t give their speeches?

Answer 1

15

Explanation:

Total students = 60

Number of student who gave speech yesterday = 2/3 of 60

`=(2)/(3)*60=2*20` = 40

Remaining students = 60 - 40 = 20

Number of students who gave speech today = 1/4 of 20

`=(1)/(4)*20=1*5=5`

Number of students who still haven't give speech = 20 - 5 = 15