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
3/10 of an hour
3/7 of an hour
2/10 of an hour
4/5 of an hour
Which is the best answer?
To find the time it will take Zya to paint the whole wall, we need to find the reciprocal of 2/5 of an hour.
Reciprocal of 2/5 = 5/2
So, it will take Zya 5/2 hours to paint the whole wall.
In decimal form, this is 2.5 hours.
Therefore, the best answer is 2/10 of an hour.