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10 Jul 2015, 02:32
Kudos
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
96% (01:49) correct
4%
(03:25)
wrong
based on 91
sessions
History
Date
Time
Result
Not Attempted Yet
In a tree 3/5 of the birds are robins while the rest are bluejays. If 1/4 of the robins are female and 3/4 of the bluejays are female, what fraction of the birds in the tree are male?
A. 7/15
B. 1/2
C. 11/20
D. 2/3
E. 7/10
Kudos for a correct solution.
A. 7/15
B. 1/2
C. 11/20
D. 2/3
E. 7/10
Kudos for a correct solution.
ENGRTOMBA2018
Joined: 20 Mar 2014
Last visit: 01 Dec 2021
Posts: 2,319
Own Kudos:
Given Kudos: 816
Concentration: Finance, Strategy
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
GPA: 3.7
WE:Engineering (Aerospace and Defense)
Products:
Updated on: 10 Jul 2015, 05:08
Originally posted by ENGRTOMBA2018 on 10 Jul 2015, 04:33.
Last edited by ENGRTOMBA2018 on 10 Jul 2015, 05:08, edited 1 time in total.
Last edited by ENGRTOMBA2018 on 10 Jul 2015, 05:08, edited 1 time in total.
Kudos
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Bunuel
Assume 100 for the total number of birds (divisible by both 4,5)
Text in black: given information
Text in red: calculated
Robins total = 3/5 * 100 = 60---> Bluejays = 100-60=40
Female robins = 1/4 * 60 = 15
Female bluejays = 3/4*40 = 30
Attachments
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10 Jul 2015, 05:05
Kudos
Bookmarks
Bunuel
Please check the color coding to understand the Sequence of steps for solving the question
Answer: Option C
Attachments
File comment: www.GMATinsight.com
Sol 7.jpg [ 147.83 KiB | Viewed 2951 times ]
