A car averages 55 mph for the first 4 hours of a trip and
averages 70 mph for each additional hour. The average speed
for the entire trip was 60 mph. How many hours long is the trip?



A car averages 55 mph for the first 4 hours of a trip and averages 70 mph for each additional hour...

Answer / mohitkuldeep

let total time = x hrs

55*4 + 70*(x-4) = 60*x
10x = 60
x =6
answer is 6 hrs

Is This Answer Correct ?    16 Yes 1 No

Post New Answer

More General Aptitude Interview Questions

A dealer sells 3 sets at Rs.2400 each ,one at 20% gain and the other at 20% loss. what is the overall gain or loss.

0 Answers   Caritor Solutions,


3. A chicken farmer surveyed his flock with the following results. The farmer Has: 9 fat red roosters(male), 37 fat chickens 6 thin red roosters 2 fat red hens , 7 thin brown hens ,5 thin red hens 26 fat roosters (total) ,18 thin brown roosters Answer the following questions about the flock(HINT: in your Venn diagram make a circle for fat, for male and for red). How many chickens are: a) fat? __________ b) red? ___________ c) male? _________ d) fat, but not male? _________ e) brown, but not fat? ________ e) read and fat? _________

1 Answers  


I was born on October 17, 1927. How old I was on Jan. 26, 1978?

14 Answers   Rourkela Steel Plant, Vizag Steel,


perimeter of rectangle is s and the other side is x, then the other side

0 Answers   DSQ Software,


pls send me state bank of india(po's) previous question papers.

8 Answers   HCL,






2 persons can finish a job in 8 days. First person alone can finish the work in 24 days. How many days does the second person take to finish the job?

0 Answers   Hexaware,


A B C D E * 4 ---------- E D C B A ------------ Find E?

9 Answers   HCL, Wipro,


A tape manufacturer reduces the price of his heavy duty tape from Rs.30/- to Rs.28/- a reel and the price of a regular tape from Rs.24/- to Rs.23/- a reel. A computing centre normally spends Rs.1440/- a month for tapes and 3/4 of this is for heavy duty tapes. How much will they save a month under the new prices?

6 Answers   TCS,


What will come in place of the question mark (?) in the following sequence? ARRANGEMENTS, RRANGEMENT, RANGEMEN, ?, NGEM (a) RANGEME (b) ANGEME (c) ANGEMENT (d) NGEMEN (e) None of these

6 Answers  


A man said to woman " your only brother's son is my wife'sbrother". How is the woman related to the man's wife..

0 Answers   Ramco,


If 12 box containers require 18 feet of wall space, how many feet of wall space will 30 box containers require?

0 Answers   Cap Gemini,


There is a field inside that there is a rectangular grass field with dimension 12X8 meter. One horse is tied at one corner of the grass field with a rope of 10 Mtrs. Horse is not allowed to enter the grass field .How much area it will graze?

3 Answers   Satyam,


Categories