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A test has 40 questions. Denise finished ##2/5## of the questions in the first 10 minutes and ##1/2## of the remaining questions in the next 15 minutes. How many questions had Denise answered after 25 minutes?
Denise had answered ##28## questions after ##25## minutes.
The first step is to see what ##2/5## of ##40## is
##2/5 * 40=16##.
Then, we can subtract this number from ##40##
##40-16 = 24##
Now, we can see what half of ##24## is. This is ##12##.
Finally, we add
##12+16= 28##
Hope this helps!