GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Two cyclists, A and B, are 145 miles apart on a straight
[#permalink]
09 Dec 2017, 18:50
09 Dec 2017, 18:50
1
Expert Reply
2
Bookmarks
00:00
Question Stats:
84% (02:19) correct
15% (01:45) wrong based on 44 sessions
Hide Show timer Statistics
Two cyclists, A and B, are 145 miles apart on a straight road. At 1:30 p.m., cyclist A begins riding at a constant speed of 20 miles per hour toward cyclist B. At 2:00 p.m., cyclist B begins riding toward cyclist A at a constant speed. At 5:00 p.m. they meet. How fast, in miles per hour, was cyclist B riding?
Drill 2
Question: 9
Page: 532-533
Question: 9
Page: 532-533
Show: :: OA
25
Re: Two cyclists, A and B, are 145 miles apart on a straight
[#permalink]
10 Dec 2017, 09:43
10 Dec 2017, 09:43
1
Hi
Cyclist A has already made 10 miles in the 30 minutes.
So we substract this from the total miles : 135 apart now.
We can set as follows : 135/ (20 + x) = 3
And solve for x. 25.
Cyclist A has already made 10 miles in the 30 minutes.
So we substract this from the total miles : 135 apart now.
We can set as follows : 135/ (20 + x) = 3
And solve for x. 25.
Re: Two cyclists, A and B, are 145 miles apart on a straight
[#permalink]
29 Dec 2017, 16:44
29 Dec 2017, 16:44
Expert Reply
Explanation
Cyclist A rode for 3.5 hours at 20 miles per hour, so she traveled 20 × 3.5 = 70 miles.
Cyclist B then, must have traveled 145 – 70 = 75 miles. Since Cyclist B left at 2:00, she rode for 3 hours, giving her a speed of 75 ÷ 3 = 25 miles per hour.
Cyclist A rode for 3.5 hours at 20 miles per hour, so she traveled 20 × 3.5 = 70 miles.
Cyclist B then, must have traveled 145 – 70 = 75 miles. Since Cyclist B left at 2:00, she rode for 3 hours, giving her a speed of 75 ÷ 3 = 25 miles per hour.
