GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 26 Jun 2019, 11:35

### 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

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

# A palindrome is a number, such as 32123, that reads the same forward

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 55803
A palindrome is a number, such as 32123, that reads the same forward  [#permalink]

### Show Tags

17 Dec 2018, 00:52
1
3
00:00

Difficulty:

25% (medium)

Question Stats:

70% (01:25) correct 30% (01:56) wrong based on 62 sessions

### HideShow timer Statistics

A palindrome is a number, such as 32123, that reads the same forward and backward. How many palindromes are there between 100 and 1000?

A. 81
B. 88
C. 89
D. 90
E. 91

_________________
CEO
Joined: 18 Aug 2017
Posts: 3947
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: A palindrome is a number, such as 32123, that reads the same forward  [#permalink]

### Show Tags

17 Dec 2018, 02:07
1
Bunuel wrote:
A palindrome is a number, such as 32123, that reads the same forward and backward. How many palindromes are there between 100 and 1000?

A. 81
B. 88
C. 89
D. 90
E. 91

0 to 9 = 10 digits

palindromes = 9*10*1*1 = 90 IMO D
_________________
If you liked my solution then please give Kudos. Kudos encourage active discussions.
Intern
Joined: 31 Jan 2018
Posts: 42
Location: Germany
GMAT 1: 610 Q44 V30
GPA: 3
WE: Supply Chain Management (Manufacturing)
Re: A palindrome is a number, such as 32123, that reads the same forward  [#permalink]

### Show Tags

30 Dec 2018, 02:35
1
The number has 3 figures: XYX - the first X can be from 1-9, Y can be from 0-9, the 2nd X must have the same value as the first X, so only 1 possibility. 9*10*1 = 90 = D
Intern
Joined: 05 Aug 2018
Posts: 18
GMAT 1: 650 Q46 V34
Re: A palindrome is a number, such as 32123, that reads the same forward  [#permalink]

### Show Tags

30 Dec 2018, 09:22
Bunuel wrote:
A palindrome is a number, such as 32123, that reads the same forward and backward. How many palindromes are there between 100 and 1000?

A. 81
B. 88
C. 89
D. 90
E. 91

The question is basically asking for the number of 3 digit palindromic numbers.

__ __ __ For the 1st blank there are 9 possibilities. (Since, 1st digit cannot be zero)
For the 2nd blank there are 10 possibilities. (the middle digit does not matter - will remain the same forwards and backwards)
For the 3rd blank there is only 1 possibility. (Since the 3rd digit must be the same as the 1st digit)

Next, multiply the number of possibilities for each digit: 9*10*1 = 90. OA: D
Re: A palindrome is a number, such as 32123, that reads the same forward   [#permalink] 30 Dec 2018, 09:22
Display posts from previous: Sort by