Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 03 Jul 2015, 20:20

### 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 June
Open Detailed Calendar

# If the average (arithmetic mean) of a and b is 45, and the

Author Message
TAGS:
Intern
Joined: 19 Nov 2004
Posts: 44
Followers: 0

Kudos [?]: 5 [0], given: 0

If the average (arithmetic mean) of a and b is 45, and the [#permalink]  19 Dec 2004, 17:31
00:00

Difficulty:

(N/A)

Question Stats:

100% (01:21) correct 0% (00:00) wrong based on 0 sessions
6. If the average (arithmetic mean) of a and b is 45, and the average of b and c is 70, what is the value of c – a?

I got lost in getting c – a
Manager
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

Kudos [?]: 2 [0], given: 0

50 it is. As the average is given , we can get the the sum of the numbers.

a+b = 90 & b+c = 140. So substract 2nd equation from the first and we will get 50 as c-a
Similar topics Replies Last post
Similar
Topics:
The average (arithmetic mean) of a normal distribution 1 15 Jul 2012, 15:36
2 The average (arithmetic mean) of a normal distribution of a 11 16 Aug 2010, 10:25
4 The average (arithmetic mean) of the multiples of 6 4 28 May 2010, 12:57
If a + b = 8c, what is the average (arithmetic mean) of a, 2 02 Oct 2005, 00:43
Display posts from previous: Sort by