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# M19-06

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Math Expert
Joined: 02 Sep 2009
Posts: 46142

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16 Sep 2014, 01:05
00:00

Difficulty:

15% (low)

Question Stats:

78% (00:37) correct 22% (00:50) wrong based on 250 sessions

A casino has $10,$25, $50, and$100 chips. If a player wants to bet $165, what is the least number of chips he must use? A. 5 B. 6 C. 7 D. 8 E. 10 _________________ Math Expert Joined: 02 Sep 2009 Posts: 46142 Re M19-06 [#permalink] ### Show Tags 16 Sep 2014, 01:05 Official Solution: A casino has$10, $25,$50, and $100 chips. If a player wants to bet$165, what is the least number of chips he must use?

A. 5
B. 6
C. 7
D. 8
E. 10

The best combination ($$1*100 + 1*25 + 4*10$$) requires 6 chips.

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Director
Joined: 08 Jun 2015
Posts: 509
Location: India
GMAT 1: 640 Q48 V29
GMAT 2: 700 Q48 V38

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31 Jul 2017, 05:53
The answer must be option B. $100 ,$25 , & four $10 bills. The sum is$165. Got it by trial & error.
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Manager
Joined: 14 Jun 2016
Posts: 70
Location: India
GMAT 1: 600 Q49 V21
WE: Engineering (Manufacturing)

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31 Jul 2017, 06:07
1
Bunuel wrote:
A casino has $10,$25, $50, and$100 chips. If a player wants to bet $165, what is the least number of chips he must use? A. 5 B. 6 C. 7 D. 8 E. 10 At first subtract the only term containing 5 i.e. 25, then to make the remaining 140 by minimum possible means we need 1* 100 + 4*10. Hence total no of bets = 1+4+1=6 _________________ If you appreciate my post then please click +1Kudos Manager Joined: 27 Jan 2016 Posts: 147 Schools: ISB '18 GMAT 1: 700 Q50 V34 Re: M19-06 [#permalink] ### Show Tags 31 Jul 2017, 06:29 The Only chip containing 5 is 25. Hence this chip must occur odd number of times. Better to subtract the value of one chip and then play with numbers. 165-25 = 140. 140 = (100*1 + 10*4) = 5 chips or 140 = (50*2 + 10*4 ) = 6 chips or 140= (25*4 + 10*4) = 8 chips Best option is 6 chips - (5 chips for totalling$140 and 1 - 25\$ chip)
Manager
Joined: 09 Nov 2016
Posts: 55

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01 Aug 2017, 04:47
Its B for sure..

1 chip with 100 value
1 chip with 25 value
4 chips with 10 value
-------------------------
6 chips with 165 value

Please press Kudos if it helped you!!
Manager
Joined: 02 May 2016
Posts: 82
Location: India
Concentration: Entrepreneurship
GRE 1: 317 Q163 V154
WE: Information Technology (Computer Software)

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08 Aug 2017, 05:56
1
Hi!
The quant question in "GMAT Club Question Of The Day Email service" is redirecting me to this particular question only. I see E-mail contains different question (mostly by math revolution) daily, but when I click the answer explanation link, I land here.
Thanks!
Manager
Joined: 14 Jun 2016
Posts: 70
Location: India
GMAT 1: 600 Q49 V21
WE: Engineering (Manufacturing)

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08 Aug 2017, 07:24
1
AkshayKS21 wrote:
Hi!
The quant question in "GMAT Club Question Of The Day Email service" is redirecting me to this particular question only. I see E-mail contains different question (mostly by math revolution) daily, but when I click the answer explanation link, I land here.
Thanks!

I am also facing the same issue....
May be some common technical issue is there...Please sort out and let us solve different question each day..
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Founder
Joined: 04 Dec 2002
Posts: 16979
Location: United States (WA)
GMAT 1: 750 Q49 V42

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08 Aug 2017, 09:33
2
Thank you for bringing it up! We're looking into it.
Glad to hear people read and click Question of the Day! It is a great tool for prep!
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Manager
Joined: 14 Jun 2016
Posts: 70
Location: India
GMAT 1: 600 Q49 V21
WE: Engineering (Manufacturing)

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09 Aug 2017, 09:41
bb wrote:
Thank you for bringing it up! We're looking into it.
Glad to hear people read and click Question of the Day! It is a great tool for prep!

Definitely QOD is a great resource and provides different types of question every day.
Thanks for sending the same every day.
Today I am able to solve the QOD properly.
Is action already taken or the problem can occur again.
Thanks once again..
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Intern
Joined: 11 Jun 2017
Posts: 5

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19 Sep 2017, 23:48
nezamali59 wrote:
If and are positive integers, is a^2 - b^2 divisible by 5?

(1) 2ab is divisible by 5
(2) a - b is divisible by 5

This was part of question of the day with the question being (a^2 + b^2) instead of (-). Can you share the answer for this question. I thought that it was C
Intern
Joined: 24 Oct 2016
Posts: 29

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24 Sep 2017, 22:31
How to solve this question algebraically ?

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Re: M19-06   [#permalink] 24 Sep 2017, 22:31
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# M19-06

Moderators: chetan2u, Bunuel

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