Kumar Chandan
Kumar Chandan
10 years ago

Sita ran to the top of a steep hill at an average pace of 6 miles per hour. She took the exact same trail back down. To her relief, the descent was much faster; her average speed rose to 14 miles per hour. If the entire run took Sita exactly one hour to complete and she did not make any stops, how many miles is the trail one way?

A. 4.2

B. 6.6

C. 8.4

D. 10

E. None


This Question Belongs to User Ask Question >> Miscellaneous

Join The Discussion

Comments ( 3 )

  1. Sudhakar Prajapati
    Sudhakar Prajapati :
    8 years ago

    ST=D,
    Speed inversely proportional to time when distance is constant.
    Means, Ratio of speeds = 1/ratio of time.
    S1/S2 = (T2/T1)
    Hence, time uphill : time downhill = 14:6 = 7:3.
    Total time up hill = 7/10 hr
    Time downhill = 3/10 hrs
    Distance up hill = (7 * 6 /10) = 4.2 kms (One way distance)
    Total Distance(up hill + down hill = 4.2 + 4.2= 8.4 kms. (Two way distance.)

  2. Kumar Chandan
    Kumar Chandan :
    8 years ago

    Thank you Examveda and Sudhakar.

  3. Cheap Jerseys
    Cheap Jerseys :
    8 years ago

    Right after I initially commented I clicked the -Notify me when new feedback are added- checkbox and now each time a remark is added I get four emails with exactly the same comment. Is there any method you will be able to take away me from that service? Thanks!
    [url=http://www.brac.org/ecocomp/cheap_Jerseys.asp]cheap jerseys china[/url]

Related User Ask Questions