Answer :
The number of minutes it will take them to type 24 pages is:D) 80
Number of minutes
Using this formula
Number of minutes=(Maria pages per hour+David pages per hour)/Number of pages×60 minutes
Let plug ion the formula
Number of minutes=(18 pages+14 pages)/24 pages×60 minutes
Number of minutes=32 pages/24 pages×60 minutes
Number of minutes=1.333333333333×60 minutes
Number of minutes=80 minutes
Inconclusion the number of minutes it will take them to type 24 pages is:D) 80.
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