Question

Find the ratio of 1 1/2 hours to 25 minutes.

Answer 1

18 : 5

Explanation:

`\text{Convert}\ 1(1)/(2)\ h\ \text{to minutes.}\\\\\text{We know:}\ 1\ h=60\ min.\ \text{Therefore}\ 1(1)/(2)\ h=\left(1(1)/(2)\right)(60\ min)=90\ min\\\\\left(1(1)/(2)\ h\right):\left(25\ min\right)=(90\ min):(25\ min)=(90)/(25)=(90:5)/(25:5)=(18)/(5)=18:5`

Answer 2

18:5???

Explanation:

1 1/2hrs = 90 mins

90 / 5 = 18

25 / 5 = 5

I'd say: 18 : 5??