Last visit was: 15 May 2025, 00:49 It is currently 15 May 2025, 00:49
Close
GMAT 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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
gmatophobia
User avatar
Quant Chat Moderator
Joined: 22 Dec 2016
Last visit: 13 May 2025
Posts: 3,141
Own Kudos:
Given Kudos: 1,860
Location: India
Concentration: Strategy, Leadership
Products:
Posts: 3,141
Kudos: 8,414
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
sagar1810
Joined: 05 Dec 2022
Last visit: 16 Dec 2022
Posts: 29
Own Kudos:
Given Kudos: 4
Posts: 29
Kudos: 28
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
kungfury42
Joined: 07 Jan 2022
Last visit: 31 May 2023
Posts: 581
Own Kudos:
Given Kudos: 725
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
GPA: 4
Products:
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
Posts: 581
Kudos: 484
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 13 Apr 2025
Posts: 807
Own Kudos:
Given Kudos: 559
Location: Italy
GPA: 3.8
Posts: 807
Kudos: 688
Kudos
Add Kudos
Bookmarks
Bookmark this Post
kungfury42
How can it be C? Q is definitely bigger than P. Factors of 36000 include 18k, 12k, 9k, 6k and many others. Even adding these 4 factors yields a number > 36000
I personally would have gone with E

just an intutive guess

oh wait smallest to biggest, i mean A
User avatar
kungfury42
Joined: 07 Jan 2022
Last visit: 31 May 2023
Posts: 581
Own Kudos:
Given Kudos: 725
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
GPA: 4
Products:
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
Posts: 581
Kudos: 484
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Don’t know the OA but it’s gotta be A.
Q > P as described above.

Also, there will be several prime numbers between 30k and 36k, and even adding 4 or 5 them
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 13 Apr 2025
Posts: 807
Own Kudos:
Given Kudos: 559
Location: Italy
GPA: 3.8
Posts: 807
Kudos: 688
Kudos
Add Kudos
Bookmarks
Bookmark this Post
kungfury42
Don’t know the OA but it’s gotta be A.
Q > P as described above.

Also, there will be several prime numbers between 30k and 36k, and even adding 4 or 5 them
Yeah I mixed the order up
User avatar
kungfury42
Joined: 07 Jan 2022
Last visit: 31 May 2023
Posts: 581
Own Kudos:
Given Kudos: 725
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
GPA: 4
Products:
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
Posts: 581
Kudos: 484
Kudos
Add Kudos
Bookmarks
Bookmark this Post
*** 4 or 5 of them would yield something bigger than Q
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 13 Apr 2025
Posts: 807
Own Kudos:
Given Kudos: 559
Location: Italy
GPA: 3.8
Posts: 807
Kudos: 688
Kudos
Add Kudos
Bookmarks
Bookmark this Post
the primes are for sure the largest - even just imagning the set its huge
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 13 Apr 2025
Posts: 807
Own Kudos:
Given Kudos: 559
Location: Italy
GPA: 3.8
Posts: 807
Kudos: 688
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I did 0 calculation for this though

so I would be surprised if A is right
User avatar
kungfury42
Joined: 07 Jan 2022
Last visit: 31 May 2023
Posts: 581
Own Kudos:
Given Kudos: 725
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
GPA: 4
Products:
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
Posts: 581
Kudos: 484
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I would be surprised if it’s not haha
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 13 Apr 2025
Posts: 807
Own Kudos:
Given Kudos: 559
Location: Italy
GPA: 3.8
Posts: 807
Kudos: 688
Kudos
Add Kudos
Bookmarks
Bookmark this Post
problems like this.. you either solve a similar question with smaller numbers or use number sense
User avatar
kungfury42
Joined: 07 Jan 2022
Last visit: 31 May 2023
Posts: 581
Own Kudos:
Given Kudos: 725
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
GPA: 4
Products:
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
Posts: 581
Kudos: 484
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Yes, that 36k cannot be taken literally and calculations be done mathematically. What if it is 128654473869 xD
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 13 Apr 2025
Posts: 807
Own Kudos:
Given Kudos: 559
Location: Italy
GPA: 3.8
Posts: 807
Kudos: 688
Kudos
Add Kudos
Bookmarks
Bookmark this Post
mysterymanrog
problems like this.. you either solve a similar question with smaller numbers or use number sense
you could try making the same set for 360, and it should be the same sol as 36000

i also think for non prime numbers the sum of factors excl. itself is larger for integers >20

just doing some quick calculations
User avatar
Arya1556
Joined: 27 Nov 2022
Last visit: 31 May 2024
Posts: 25
Own Kudos:
Given Kudos: 21
GPA: 2.8
Posts: 25
Kudos: 14
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Harry, Jacob and Oliver packed several cartons with toys. The number of cartons packed by Harry was three-fifths of the number of cartons packed by Jacob which was two-thirds of the cartons packed by Oliver. What is the ratio of the number of cartons packed by Harry, Jacob and Oliver?
(A) 5:10:12
(B) 5:12:10
(C) 6:10:9
(D) 6:10:15
(E) 12:10:15
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 13 Apr 2025
Posts: 807
Own Kudos:
Given Kudos: 559
Location: Italy
GPA: 3.8
Posts: 807
Kudos: 688
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Arya1556
Harry, Jacob and Oliver packed several cartons with toys. The number of cartons packed by Harry was three-fifths of the number of cartons packed by Jacob which was two-thirds of the cartons packed by Oliver. What is the ratio of the number of cartons packed by Harry, Jacob and Oliver?
(A) 5:10:12
(B) 5:12:10
(C) 6:10:9
(D) 6:10:15
(E) 12:10:15
Is this question written correctly?

Arya1556
Harry, Jacob and Oliver packed several cartons with toys. The number of cartons packed by Harry was three-fifths of the number of cartons packed by Jacob which was two-thirds of the cartons packed by Oliver. What is the ratio of the number of cartons packed by Harry, Jacob and Oliver?
(A) 5:10:12
(B) 5:12:10
(C) 6:10:9
(D) 6:10:15
(E) 12:10:15
Should be D?
User avatar
AbhinavKumar
Joined: 21 Feb 2020
Last visit: 10 May 2024
Posts: 201
Own Kudos:
Given Kudos: 347
Location: India
Concentration: Finance, Leadership
GMAT 1: 640 Q46 V32
GMAT 2: 670 Q48 V34
WE:Information Technology (Consulting)
GMAT 2: 670 Q48 V34
Posts: 201
Kudos: 167
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Arya1556
Harry, Jacob and Oliver packed several cartons with toys. The number of cartons packed by Harry was three-fifths of the number of cartons packed by Jacob which was two-thirds of the cartons packed by Oliver. What is the ratio of the number of cartons packed by Harry, Jacob and Oliver?
(A) 5:10:12
(B) 5:12:10
(C) 6:10:9
(D) 6:10:15
(E) 12:10:15
is it D ?

Also, you forgot to mention source of the question

kungfury42
How can it be C? Q is definitely bigger than P. Factors of 36000 include 18k, 12k, 9k, 6k and many others. Even adding these 4 factors yields a number > 36000
yeah... OA must be (A)
User avatar
gmatophobia
User avatar
Quant Chat Moderator
Joined: 22 Dec 2016
Last visit: 13 May 2025
Posts: 3,141
Own Kudos:
Given Kudos: 1,860
Location: India
Concentration: Strategy, Leadership
Products:
Posts: 3,141
Kudos: 8,414
Kudos
Add Kudos
Bookmarks
Bookmark this Post
PS Question 2 - Dec 08

Jane started baby-sitting when she was 18 years old. Whenever she baby-sat for a child, that child was no more than half her age at the time. Jane is currently 32 years old, and she stopped baby-sitting 10 years ago. What is the current age of the oldest person for whom Jane could have baby-sat?

A. 20
B. 21
C. 22
D. 23
E. 24

Source: Manhattan GMAT | Difficulty: Hard

DS Question 2 - Dec 08

Triangles ABC and DEF are similar right triangles. If the hypotenuse of triangle DEF has a length of 20, what is the length of the hypotenuse of triangle ABC?

(1) The ratio of the perimeter of ABC to the area of ABC is the reciprocal of the ratio of the perimeter of DEF to the area of DEF.
(2) One of the legs in triangle DEF has a length of 12.

Source: Manhattan GMAT | Difficulty: Hard
User avatar
AbhinavKumar
Joined: 21 Feb 2020
Last visit: 10 May 2024
Posts: 201
Own Kudos:
Given Kudos: 347
Location: India
Concentration: Finance, Leadership
GMAT 1: 640 Q46 V32
GMAT 2: 670 Q48 V34
WE:Information Technology (Consulting)
GMAT 2: 670 Q48 V34
Posts: 201
Kudos: 167
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gmatophobia
PS Question 2 - Dec 08

Jane started baby-sitting when she was 18 years old. Whenever she baby-sat for a child, that child was no more than half her age at the time. Jane is currently 32 years old, and she stopped baby-sitting 10 years ago. What is the current age of the oldest person for whom Jane could have baby-sat?

A. 20
B. 21
C. 22
D. 23
E. 24

Source: Manhattan GMAT | Difficulty: Hard
lets chart out the timeline

(9 = max age of a child she baby-sat)->18--(4yrs elapsed)--22 --(10yrs elapsed)->32(current timeline)

so current age of oldest baby = 9+4+10 = 23

option D ?

AbhinavKumar
gmatophobia
PS Question 2 - Dec 08

Jane started baby-sitting when she was 18 years old. Whenever she baby-sat for a child, that child was no more than half her age at the time. Jane is currently 32 years old, and she stopped baby-sitting 10 years ago. What is the current age of the oldest person for whom Jane could have baby-sat?

A. 20
B. 21
C. 22
D. 23
E. 24

Source: Manhattan GMAT | Difficulty: Hard
lets chart out the timeline

(9 = max age of a child she baby-sat)->18--(4yrs elapsed)--22 --(10yrs elapsed)->32(current timeline)

so current age of oldest baby = 9+4+10 = 23

option D ?
Writing again because previous explanation may seem a little unorganized - the baby age of 9yrs and jane being 18 at that time is a simultaneous condition, so as Jane’s age jumps from 18 to 32 (i.e 14 yrs elapsed), so does this passing of time happens to 9 yrs old baby, bringing him to current age of 9+14 years = 23 yrs
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 13 Apr 2025
Posts: 807
Own Kudos:
Given Kudos: 559
Location: Italy
GPA: 3.8
Posts: 807
Kudos: 688
Kudos
Add Kudos
Bookmarks
Bookmark this Post
AbhinavKumar
gmatophobia
PS Question 2 - Dec 08

Jane started baby-sitting when she was 18 years old. Whenever she baby-sat for a child, that child was no more than half her age at the time. Jane is currently 32 years old, and she stopped baby-sitting 10 years ago. What is the current age of the oldest person for whom Jane could have baby-sat?

A. 20
B. 21
C. 22
D. 23
E. 24

Source: Manhattan GMAT | Difficulty: Hard
lets chart out the timeline

(9 = max age of a child she baby-sat)->18--(4yrs elapsed)--22 --(10yrs elapsed)->32(current timeline)

so current age of oldest baby = 9+4+10 = 23

option D ?
I did a slightly different interpertation

"the oldest child she could have sat" is the highest possible age while baby sitting

So this would happen in her last year, when she is 22/2=11, so 11 max age. 11 plus 10 is 21 so A
User avatar
Sarmadk5
Joined: 19 Nov 2022
Last visit: 23 Jan 2023
Posts: 125
Own Kudos:
Given Kudos: 36
Posts: 125
Kudos: 61
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gmatophobia
PS Question 2 - Dec 08

Jane started baby-sitting when she was 18 years old. Whenever she baby-sat for a child, that child was no more than half her age at the time. Jane is currently 32 years old, and she stopped baby-sitting 10 years ago. What is the current age of the oldest person for whom Jane could have baby-sat?

A. 20
B. 21
C. 22
D. 23
E. 24

Source: Manhattan GMAT | Difficulty: Hard
B 21
   1  ...  22   23   24   25   26  ...  458   
Moderator:
General GMAT Forum Moderator
335 posts