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Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  Husain and Dino had an average (arithmetic mean) of \$20 each. Dino the

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Math Expert V
Joined: 02 Sep 2009
Posts: 58445
Husain and Dino had an average (arithmetic mean) of \$20 each. Dino the  [#permalink]

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Difficulty:   25% (medium)

Question Stats: 84% (00:57) correct 16% (02:14) wrong based on 23 sessions

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Husain and Dino had an average (arithmetic mean) of \$20 each. Dino then won a cash prize, which increased the average amount of money they had to \$80. If no other changes occurred, how many dollars did Dino win?

A. 40
B. 60
C. 80
D. 100
E. 120

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Intern  B
Joined: 05 Oct 2018
Posts: 11
Re: Husain and Dino had an average (arithmetic mean) of \$20 each. Dino the  [#permalink]

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(H+D)/2 = 20
H+D = 40

(H+X+D)/2 = 80
H+X+D = 160

160-40=120

E
VP  D
Joined: 31 Oct 2013
Posts: 1465
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: Husain and Dino had an average (arithmetic mean) of \$20 each. Dino the  [#permalink]

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Bunuel wrote:
Husain and Dino had an average (arithmetic mean) of \$20 each. Dino then won a cash prize, which increased the average amount of money they had to \$80. If no other changes occurred, how many dollars did Dino win?

A. 40
B. 60
C. 80
D. 100
E. 120

Nice question.

Total amount Husain and Dino had before wining the cash prize = 20 *2 = 40.

After wining the cash prize AVERAGE becomes 80.

Total amount after wining cash prize = 80*2 = 160.

Value of the cash prize = 160 - 40 = 120.

E is the best answer.
Board of Directors D
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4773
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
Re: Husain and Dino had an average (arithmetic mean) of \$20 each. Dino the  [#permalink]

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Bunuel wrote:
Husain and Dino had an average (arithmetic mean) of \$20 each. Dino then won a cash prize, which increased the average amount of money they had to \$80. If no other changes occurred, how many dollars did Dino win?

A. 40
B. 60
C. 80
D. 100
E. 120

h + d = 40

h + (d + cash) = 160

So, The value of the cash prize is 120, Answer must be (E)
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Abhishek....

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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 ) Re: Husain and Dino had an average (arithmetic mean) of \$20 each. Dino the   [#permalink] 18 Dec 2018, 08:21
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Husain and Dino had an average (arithmetic mean) of \$20 each. Dino the

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