Question

Ravi drove 715 miles in 11 hours. At the same rate, how long would it take him to drive 845 miles?

Answer 1

13 hours (see below)

Explanation:

First, we can use a ratio to better understand the situation:

715 miles 845 miles

-------------- = --------------

11 hours x hours

Cross multiply:

715 (x) = 11 (845)

715x = 9295

x = 13

So it would take Ravi 13 hours to drive 845 miles.