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RenB
Joined: 13 Jul 2022
Last visit: 30 Apr 2026
Posts: 388
Given Kudos: 304
Location: India
Concentration: Finance, Nonprofit
Schools: Stanford '26 Wharton '26 (D) Booth '26 (D) Yale '26 (D) CBS '26 (A$$$) Darden '26 (WL) HBS '26 (D) Ross '26 (A$$$$) LBS '26 (D) Tuck '26 (A$$) Kellogg '26 (A)
GMAT Focus 1: 715 Q90 V84 DI82 
GPA: 3.74
WE:Corporate Finance (Consulting)
Schools: Stanford '26 Wharton '26 (D) Booth '26 (D) Yale '26 (D) CBS '26 (A$$$) Darden '26 (WL) HBS '26 (D) Ross '26 (A$$$$) LBS '26 (D) Tuck '26 (A$$) Kellogg '26 (A)
GMAT Focus 1: 715 Q90 V84 DI82
Posts: 388
21 May 2023, 03:27
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
76% (01:02) correct
24%
(00:57)
wrong
based on 221
sessions
History
Date
Time
Result
Not Attempted Yet
A certain population of guinea pigs doubles every month. If there are 10 guinea pigs in the population today, how many additional guinea pigs will be added to the population in the next 6 months?
A. 12
B. 64
C. 150
D. 630
E. 640
A. 12
B. 64
C. 150
D. 630
E. 640
22 May 2023, 00:38
Kudos
Bookmarks
RenB
Solution:
- No. of guinea pigs today \(=10\)
- No. of guinea pigs after 6 months \(= 10\times 2^6=640\)
- Increase in the no. of guinea pigs \(=640-10=630\)
Hence the right answer is Option D
