Rose o rekile mae a masome a matlhano ka $2.40 lefoko. O tla a rekisa ka $1 ya mae a le 3. Ke phaelo e e kana kang e Rose a tla e bonang?

A custodian has to clean a school with 80 classrooms. They have 5 days to get it done. It takes them 15 minutes per classroom. If they work an 8 hour day, what percentage of their day, on average, is spent cleaning classrooms?
Rose o rekile mae a masome a matlhano ka $2.40 x 5 = $<<2.40*5=12>>12.
Mae a masome a matlhano a lekana le 12 x 5 = <<12*5=60>>60 mae.
Ka jalo go na le 60/3 = <<60/3=20>>20 ya mae a le 3 ao Rose a tla a rekisang.
Jalo he, Rose o tla bona madi a a kana kang ka go rekisa mae $1 x 20 = $<<20=20>>20.
Ka jalo he, phaelo ya gagwe e tla nna $20 - $12 = $<<20-12=8>>8.
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They have to clean 16 classrooms a day because 80 / 5 = <<80/5=16>>16
They spend 240 minutes cleaning per day because 16 x 15 = <<16*15=240>>240
They spend 4 hours a day because 240 / 60 = <<240/60=4>>4
They spend half their day cleaning classrooms because 4 / 8 = <<4/8=.5>>.5
They spend 50% of their day cleaning classrooms because .5 x 100 = <<.5*100=50>>50
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