Question

3 feet of snow fell in 1 2/3 hours. What was that rate in inches per hours?

1) 1 4/5
2) 9 4/5
3) 1 1/5
4) 9.5

Answer 1

21
`(3)/(5)`in/hr

Explanation:

Distance of snow fall = 3ft

Time taken = 1
`(2)/(3)`hrs

Unknown:

Rate of snowfall = ?

Solution:

The rate of the snowfall is the same as the speed of the fall;

Rate of snowfall =
`(distance of snowfall)/(time)`

Convert the ft to inches;

1ft = 12inches

3ft = 3 x 12 = 36inches

Input the parameters and solve;

Rate of snowfall =
`(36)/((5)/(3) )` = 36 x
`(3)/(5)` = 21
`(3)/(5)`in/hr