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  • 1 Post By weirddave
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September 17th, 2018, 11:39 PM   #1
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Sam and Nora, how much did they have altogether

Sam and Nora had an equal amount of money. After Sam spent 5/7 of his money and Nora spent 7/8 of her money, Sam had \$13.50 more than Nora left. How much did they have altogether at first?

My work

Amount for Nora = N
Amount for Sam = S

[1] We know that Sam and Nora had the same amount: N = S
[2] We know Sam spent 5/7 of his money and Nora spent 7/8 of her money, and after, Sam had \$13.50 more than Nora: 5/7S + 13.50 = 7/8N

Since we know N = S, I replaced N from the [2] with S. So, 13.50 = 7/8S - 5/7S

S = 84,
N = 84

Answer 168

Is my work mathematically correct?

Last edited by skipjack; September 18th, 2018 at 01:38 AM.
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September 18th, 2018, 01:27 AM   #2
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Looks good to me
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September 18th, 2018, 01:42 AM   #3
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What did Sam and Nora spend their money on?
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September 18th, 2018, 06:32 AM   #4
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Quote:
Originally Posted by skipjack View Post
What did Sam and Nora spend their money on?
They were "on" The Good Ship Lollipop
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