48 students have chosen German as their third language in section C and 54 students in section D. Find the average number of students whose third language is German in both of the sections together.
Answers
Step-by-step explanation:
Average=students in section C + students in section D÷2
Average=48+54/2
Average=102/2
Average=51
answer
mark as brainliest
Step-by-step explanation:
GMAT Club
FORUM
GMAT CLUB TESTS
QUESTION BANKS
DECISION TRACKER
SCHOOL DISCUSSIONS
REVIEWS
DEALS & DISCOUNTS
CHAT
T&C AND PRIVACY POLICY
GMAT Club Rules
Login
Username
Password
Register Forgot password?
Close
Search
Close
GMAT Club Forum Index Problem Solving (PS)
The 8 PM Heroes of Timers Question batch is Here!
In a class of 78 students 41 are taking French, 22 are taking German. : Problem Solving (PS)
TAGS
Bunuel
EXPERT'S
POST
Updated on: Mar 15, 2019
00:00ABCDE
DIFFICULTY: 5% (low) QUESTION STATS: based on 179 sessions
91% (01:09) correct
9% (01:09) wrong
In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course?
A. 6
B. 15
C. 24
D. 33
E. 54
Spoiler: OA
_________________
New to the GMAT CLUB Forum?
Posting Rules: QUANTITATIVE | VERBAL. Guides and Resources: QUANTITATIVE | VERBAL | Ultimate GMAT Quantitative Megathread | All You Need for Quant
Questions' Banks and Collection:
PS: Standard deviation | Tough Problem Solving Questions With Solutions | Probability and Combinations Questions With Solutions | Tough and tricky exponents and roots questions | 12 Easy Pieces (or not?) | Bakers' Dozen | Algebra set | Mixed Questions | Fresh Meat
DS: DS Standard deviation | Inequalities | 700+ GMAT Data Sufficiency Questions With Explanations | Tough and tricky exponents and roots questions | The Discreet Charm of the DS | Devil's Dozen!!! | Number Properties set | New DS set
MIXED: GMAT Club's Complete Questions' Bank | SEVEN SAMURAI OF 2012 | Tricky questions from previous years. | Special Questions' Directory | Best Of The Best Of 2017 | The Best Of Quant of 2016 | 20 hardest and 20 best questions of 2015 | 15 best topics of 2015 | Seven Samurai of 2012 | GMAT Probability Questions
What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics
Signature Read More
Last edited by Bunuel on 15 Mar 2019, 03:23, edited 1 time in total.
Updated.
Kudos
6 kudos, 0 bookmark
Harley1980
Updated on: Apr 3, 2015
Bunuel wrote:
In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course?
A. 6
B. 15
C. 24
D. 33
E. 54
Kudos for a correct solution.
Formula for calculating two overlapping sets:
A + B - both + NOT(A or B) = Total
so in our task we have equation:
41 (french) + 22 (german) - 9 (both) + NOT = 78
54 + NOT = 78
NOT = 78 - 54 = 24
So answer is C