A postal carrier can deliver to 130 houses in a 2.5 hour period. At this rate, how many hours will it take to deliver to 234 houses?

Guest Feb 1, 2019

edited by
Guest
Feb 1, 2019

#1**+1 **

The postman delivers to 130 houses in 2.5 hours

Divide 130 houses by 2.5 hours and his rate of delivery is 130/2.5 = 52 houses per hour

To deliver to 234 houses, divide 234 by the rate 52 houses/hour and you get 4.5 hours

Tip: the word "per" always means "divide by"

Guest Feb 1, 2019

#2**+1 **

Since he can deliver to 130 houses, in a 2.5 hour period you should

figure out how many he can deliver in 1/2 an hour, which is 26

divide 234 by 26,

and you get 9

9 x 1/2 is equal to 9/2

which is equal to 4.5 hours

Imnotamaster Feb 1, 2019