Zya wants to paint her bedroom wall. If she completes 2/5 of the wall in 1/2 hour, how long will it take her to paint the whole wall?
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2 points
A. 3/10 of an hour
B. 3/7 of an hour
C. 2/10 of an hour
D. 4/5 of an hour
To find out how long it will take Zya to paint the whole wall, we need to find out how much time it takes her to complete 1/5 of the wall (since 2/5 is already done).
Since Zya completes 2/5 of the wall in 1/2 hour, we can find out how much time she takes to complete 1/5 by dividing 1/2 by 2: (1/2) / 2 = 1/4.
Therefore, it will take Zya 1/4 of an hour to complete 1/5 of the wall.
To find out how long it will take her to paint the whole wall, we multiply 1/4 by 5 (since there are 5 parts in the whole wall): (1/4) * 5 = 5/4.
Therefore, it will take Zya 5/4 or 1 1/4 hours to paint the whole wall.
The correct answer is not one of the options listed.