Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2601:30 AM EDT
-02:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
07 Dec 2021, 08:15
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
48% (02:20) correct
52%
(02:19)
wrong
based on 124
sessions
History
Date
Time
Result
Not Attempted Yet
How many integers from 600 to 899, inclusive, contain 7 or 8 in digit?
(A) 220
(B) 236
(C) 238
(D) 240
(E) 242
Are You Up For the Challenge: 700 Level Questions
(A) 220
(B) 236
(C) 238
(D) 240
(E) 242
Are You Up For the Challenge: 700 Level Questions
06 Jan 2022, 06:43
Kudos
Bookmarks
Total number of integers from 600 to 899 = 899 - 600 +1 = 300
Number of integers that don't contain 7 or 8 in digit = 1 x 8 x 8 = 64
Number of integers contain 7 or 8 in digit = 300 - 64 = 236
The answer is B
Number of integers that don't contain 7 or 8 in digit = 1 x 8 x 8 = 64
Number of integers contain 7 or 8 in digit = 300 - 64 = 236
The answer is B
General Discussion
08 Dec 2021, 01:09
Kudos
Bookmarks
Numbers between 700 and 899:
All numbers between 700 and 899 will include either a 7 or an 8.
\(899 - 700 + 1 = 200\)
Numbers between 600 and 699:
Numbers which will have 7 or 8 as a unit's digit: each number will appear 10 times as a unit's digit \(10*2 = 20\)
Numbers which will have 7 or 8 as a ten's digit but which don't have 7 or 8 as a unit's digit: Each number will again appear 10 times \(10*2 = 20\), but as 7 and 8 has been counted for as a unit's digit already one needs to subtract the numbers which will have either 7 or 8 as both a tens and units digit, this occurs 4 times \(20 - 4 = 16\)
Total numbers between 600 and 899 which include the numbers 7 or 8:
\(200 + 20 + 16 = 236\)
Answer B
All numbers between 700 and 899 will include either a 7 or an 8.
\(899 - 700 + 1 = 200\)
Numbers between 600 and 699:
Numbers which will have 7 or 8 as a unit's digit: each number will appear 10 times as a unit's digit \(10*2 = 20\)
Numbers which will have 7 or 8 as a ten's digit but which don't have 7 or 8 as a unit's digit: Each number will again appear 10 times \(10*2 = 20\), but as 7 and 8 has been counted for as a unit's digit already one needs to subtract the numbers which will have either 7 or 8 as both a tens and units digit, this occurs 4 times \(20 - 4 = 16\)
Total numbers between 600 and 899 which include the numbers 7 or 8:
\(200 + 20 + 16 = 236\)
Answer B
