There are 90 students in a speech contest. Yesterday ,1/3 of them gave their speeches. Today, 3/5 of the remaining students gave their speeches. How many students still haven't given their speeches?
24 students are left. 1/3 of 90 is 30 leaving 60 kids to give their speeches the next day. 2/5 of the rest of the students will be left after today when 3/5 give their speeches. so .4 * 60= 24
