Question

A swimmer swims a quarter of a mile in
12 minutes. How far does she swim in one hour?

Answer 1

• A quarter of a mile means 1/4 miles

Time=12min

• Pair with 1hour=60/12=5

She swim in one hour=

`\\ \sf\longmapsto 5(1/4)`

`\\ \sf\longmapsto 5/4`

`\\ \sf\longmapsto 1.2mi`

Answer 2

• 1.25 miles

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A swimmer swims a quarter of a mile in 12 minutes.

• 1/4 miles ⇒ 12 min,
• x miles ⇒ 1 hr = 60 min.

Cross- product:

• x*12 = 1/4*60
• 12x = 15
• x = 15/12
• x = 5/4
• x = 1.25 miles