Question

SSAT Word Problem: A bus driver took between 2 1/2 and 3 hours to make a 165-mile trip? The average speed in miles per hour must have been between:

45 and 48
48 and 50
50 and 55
55 and 66
66 and 110

Answer 1

for your lower estimate divide 165 by 3, for your upper estimate divide 165 by 2.5