Timer
00:00
Your answer
Difficulty–
right wrong
Pick an answer to see how members did
8question types
Log this miss in the free GMAT error log
Get the error log60days
Get one like this every day: the free 60-day plan
Start the planSource: E-GMAT
Karen traveled x miles from her home to office, at a speed of y miles per hour and on her way back, she takes the same route, and travels for 10 miles at a speed of y miles per hour before stopping for an hour. Now, by what percentage should she increase her speed so that the overall time taken to reach back home from the office is the same as that taken to reach the office from home?
A. \(\dfrac{(x-10)100y}{x-y-10}\)
B. \(\dfrac{100y}{x-y-10}\)
C. \(\dfrac{100x}{x-y-10}\)
D. \(\dfrac{(x-10)100y}{y-x-10}\)
E. \(\dfrac{100y}{y-x-10}\)
The OA is B
Karen traveled x miles from her home to office, at a speed of y miles per hour and on her way back, she takes the same route, and travels for 10 miles at a speed of y miles per hour before stopping for an hour. Now, by what percentage should she increase her speed so that the overall time taken to reach back home from the office is the same as that taken to reach the office from home?
A. \(\dfrac{(x-10)100y}{x-y-10}\)
B. \(\dfrac{100y}{x-y-10}\)
C. \(\dfrac{100x}{x-y-10}\)
D. \(\dfrac{(x-10)100y}{y-x-10}\)
E. \(\dfrac{100y}{y-x-10}\)
The OA is B
