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At a donation meeting yesterday, each of N persons donated $100

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Intern
Intern
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B
Joined: 18 Jun 2015
Posts: 15

Kudos [?]: 5 [0], given: 38

Location: Mexico
Concentration: Marketing, Entrepreneurship
GMAT 1: 590 Q43 V28
GMAT 2: 640 Q40 V38
GPA: 3.99
WE: Marketing (Aerospace and Defense)
GMAT ToolKit User
At a donation meeting yesterday, each of N persons donated $100 [#permalink]

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New post 21 Aug 2017, 15:47
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

79% (01:16) correct 21% (01:29) wrong based on 67 sessions

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At a donation meeting yesterday, each of N persons donated $100 to help seniors who live alone, and at another meeting held today, each of M persons donated $200 to help children without parents. What are the values of M and N?

1) The total amount donated yesterday is $40,000
2) The total amount donated today is 60 percent of the total amount donated for two days
[Reveal] Spoiler: OA

Kudos [?]: 5 [0], given: 38

Intern
Intern
avatar
B
Joined: 18 Aug 2017
Posts: 30

Kudos [?]: 9 [0], given: 17

GMAT 1: 670 Q49 V33
At a donation meeting yesterday, each of N persons donated $100 [#permalink]

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New post 25 Aug 2017, 00:34
Total money donate yesterday: N x 100
Total money donate today: M x 200
M= ?, N = ?

1- 100N = 40,000
No information on N, so INSUFF

2- 200M = 60% (100N + 200M)
This only gives the ratio of M and N, without any value like the total amount or N or M we can't solve for M and N.
INSUFF

1+2: too obvious, so C is the answer.

Kudos [?]: 9 [0], given: 17

At a donation meeting yesterday, each of N persons donated $100   [#permalink] 25 Aug 2017, 00:34
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At a donation meeting yesterday, each of N persons donated $100

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