Question

It took Mary Lou 5/6 hour to write a report for English class. It took Heather 9/10 as much time to write her report as it took Mary Lou. Who took longer?

Answer 1

the one who took longer in this question is mary lou

Answer 2

So, Mary Lou took
`(5)/(6)` of an hour, that is
`(5)/(6)*60 mins=50 mins`

Heather took
`(9)/(10)` as much time as Mary Lou, so she took
`(9)/(10)` of 50 minutes, that is
`(9)/(10)*50=45`

45 minutes is less than 50, so Heather was faster and Mary Lou was slower and took longer!