Question

here are 72 students in a speech contest. Yesterday, 1/3 of them gave their speeches. Today, 3/4 of the remaining students gave their speeches. How many students still haven't given their speeches?

Answer 1

Explanation:

Yesterday, 1/3 of the 72 students gave their speeches, which is:

(1/3) x 72 = 24 students

So, the number of students who did not give their speeches yesterday is:

72 - 24 = 48 students

Today, 3/4 of the remaining 48 students gave their speeches, which is:

(3/4) x 48 = 36 students

So, the number of students who still haven't given their speeches is:

48 - 36 = 12 students

Therefore, there are 12 students who still haven't given their speeches.