Anne and Beth will participate in a sack race (In a sack race, people hop to reach the finish line). In the time that Anne takes 3 hops, Beth takes 4 hops but the distance covered by Anne in 4 hops is equal to distance covered by Beth in 5 hops. What is the ratio of Anne's speed: Beth's speed?
3 : 5
12 : 20
15 : 16
1 : 1
5 : 3
Hops - Time and Distance
This topic has expert replies
- ganeshrkamath
- Master | Next Rank: 500 Posts
- Posts: 283
- Joined: Sun Jun 23, 2013 11:56 pm
- Location: Bangalore, India
- Thanked: 97 times
- Followed by:26 members
- GMAT Score:750
time taken for 3 hops by Anne = time taken for 4 hops by Bethkop wrote:Anne and Beth will participate in a sack race (In a sack race, people hop to reach the finish line). In the time that Anne takes 3 hops, Beth takes 4 hops but the distance covered by Anne in 4 hops is equal to distance covered by Beth in 5 hops. What is the ratio of Anne's speed: Beth's speed?
3 : 5
12 : 20
15 : 16
1 : 1
5 : 3
3*ta = 4*tb
tb/ta = 3/4
distance covered in 4 hops of Anne = distance covered in 5 hops of Beth
4A = 5B
A/B = 5/4
Anne's speed = A/ta
Beth's speed = B/tb
Ratio = A/B * tb/ta
= 5/4 * 3/4
= 15/16
Choose C
Cheers
Every job is a self-portrait of the person who did it. Autograph your work with excellence.
Kelley School of Business (Class of 2016)
GMAT Score: 750 V40 Q51 AWA 5 IR 8
https://www.beatthegmat.com/first-attemp ... tml#688494
Kelley School of Business (Class of 2016)
GMAT Score: 750 V40 Q51 AWA 5 IR 8
https://www.beatthegmat.com/first-attemp ... tml#688494