Restaurant 🍴

Algebra Level 1

9 people went to a restaurant. 8 of them spent $12 each. The ninth spent 8 more than the total money spent by all of them. Find the total money spent.( in $)


The answer is 200.

Mridul Chaturvedi by Mridul Chaturvedi , 20, India

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3 solutions

Abhinav Agarwal
Dec 23, 2014

money spent by 8 people= 8x12=$96 money spent by ninth= 8+96=$104 so total money= 96+104=$200

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$200 why because 8 people spent $12 each. You multiply 8 x 12 = 96. If the 9th person spent $8 more than the total of all of them, you add 8 to 96 which equals 104. Then you add 96 to 104 which equals $200.

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Mridul Chaturvedi
Sep 19, 2014

Money spent by 8 each = 12

Total money spent by 8=96

Now taking total money spent by them as- x

=x=96 + (x/9 +8)

=x=[9(96)+x+72]/9

=8x=9(96)+72

=x=9(96)/8 +72/8

x=108+9

x=117

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There needs to be a correction in the question. You have written "8 more than the total money spent by all of them." It should be "8 more than the average money spent by all of them."

Archit Boobna - 6 years, 8 months ago

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i got it wrong >_>

math man - 6 years, 8 months ago

I have updated the answer to 200.

In future, if you spot any errors with a problem, you can “report” it by selecting the “dot dot dot” menu in the lower right corner.

Calvin Lin Staff - 6 years, 8 months ago

I m very sorry for my mistake . Archit u are right about that average stuff. I just forgot to add that

Mridul Chaturvedi - 6 years, 8 months ago

Hey Calvin I have edited the question now. Please change the answer accordingly.

Mridul Chaturvedi - 6 years, 8 months ago

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I prefer to keep the question in the form that you originally posted, so that it is not confusing to others. I've reverted the edit to your question.

You can post the new version as a separate question.

Calvin Lin Staff - 6 years, 8 months ago

How have you done this? Explain it please!!!

Ashi Chaturvedi - 6 years, 8 months ago

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