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

 It is currently 16 Jan 2019, 12:47

### 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

## Events & Promotions

###### Events & Promotions in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
• ### The winning strategy for a high GRE score

January 17, 2019

January 17, 2019

08:00 AM PST

09:00 AM PST

Learn the winning strategy for a high GRE score — what do people who reach a high score do differently? We're going to share insights, tips and strategies from data we've collected from over 50,000 students who used examPAL.
• ### Free GMAT Strategy Webinar

January 19, 2019

January 19, 2019

07:00 AM PST

09:00 AM PST

Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

# In a sequence Q, the first number is 3, and each subsequent number in

Author Message
TAGS:

### Hide Tags

Current Student
Joined: 12 Aug 2015
Posts: 2626
Schools: Boston U '20 (M)
GRE 1: Q169 V154
In a sequence Q, the first number is 3, and each subsequent number in  [#permalink]

### Show Tags

08 Apr 2017, 03:31
1
00:00

Difficulty:

15% (low)

Question Stats:

89% (01:08) correct 11% (01:32) wrong based on 63 sessions

### HideShow timer Statistics

In a sequence Q, the first number is 3, and each subsequent number in the sequence is obtained by doubling the previous number and then adding 2.In the first ten terms of the sequence, how many times does the digit 8 appear in the units digit ?

A)9
B)8
C)7
D)6
E)5

_________________

MBA Financing:- INDIAN PUBLIC BANKS vs PRODIGY FINANCE!

Getting into HOLLYWOOD with an MBA!

The MOST AFFORDABLE MBA programs!

STONECOLD's BRUTAL Mock Tests for GMAT-Quant(700+)

AVERAGE GRE Scores At The Top Business Schools!

Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4331
Location: India
GPA: 3.5
Re: In a sequence Q, the first number is 3, and each subsequent number in  [#permalink]

### Show Tags

08 Apr 2017, 06:35
stonecold wrote:
In a sequence Q, the first number is 3, and each subsequent number in the sequence is obtained by doubling the previous number and then adding 2.In the first ten terms of the sequence, how many times does the digit 8 appear in the units digit ?

A)9
B)8
C)7
D)6
E)5

Q = { 3 , 8 , 18 , 38 , 78 , 158 , 318 , 638 , 1278 , 2558 }

Actually U form a pattern and U dont neet to calculate the 10 digits...

8*2 = 6 ( Units Digit )
6 + 2 = 8 ( Units Digit )

That's the rule, so except the first digit all numbers in the series will have 8 , answer must be (A) 9
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Non-Human User
Joined: 09 Sep 2013
Posts: 9415
Re: In a sequence Q, the first number is 3, and each subsequent number in  [#permalink]

### Show Tags

20 Nov 2018, 08:04
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Re: In a sequence Q, the first number is 3, and each subsequent number in &nbs [#permalink] 20 Nov 2018, 08:04
Display posts from previous: Sort by