A truck driver must complete a 180-mile trip in 4 hours. If he averages 50 miles an hour for the first three hours of his trip, how fast must he travel in the final hour?

Created: 6 years ago | Updated: 3 years ago

Updated: 3 years ago

30 mph

45 mph

35 mph

40 mph

Social Islami Bank Ltd Social Islami Bank Ltd - Officer - 2004 গণিত গড় (Average)

ব্যাখ্যা

356

Best Ans:

d = s x t

= 50 x 3

= 150

now distance left

= 180 - 150

= 30

thus he need s to travel 30 miles in 4th hour thus his speed should be 30 miles per hour

6 years ago

0 0

Md Azizur Rahman

Founder of Satt

গড় (Average)