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A sum of money was distributed among Lyle, Bob, and Chloe. F
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14 Mar 2019, 09:39
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Question Stats:
48% (03:50) correct
51% (03:17) wrong based on 136 sessions
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A sum of money was distributed among Lyle, Bob, and Chloe. First, Lyle received $ 4 plus one-half of what remained. Next, Bob received $ 4 plus one-third of what remained. Finally, Chloe received the remaining $ 32. How many dollars did Bob receive?
Re: A sum of money was distributed among Lyle, Bob, and Chloe. F
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20 Mar 2019, 15:40
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We don't care at all about what Lyle received. We only want to know how much Bob received, and we can work backwards from the $32 that Chloe received.
Let's say that x dollars remained after Lyle got his share. Bob, then, received $4, leaving us with x - 4. He received one-third of this, leaving two-thirds for Chloe. So Chloe received \(\frac{2}{3}(x - 4)\).
This is equal to $32, so:
\(\frac{2}{3}(x - 4) = 32\)
Multiply both sides by \(\frac{3}{2}\):
\(x-4 = 48\)
Add 4 to both sides:
\(x = 52\)
So there were 52 dollars left after Lyle got his share. Bob received $4, and then one-third of the remaining $48. One-third of 48 is 16, so Bob received 4 + 16 = 20 dollars in all.
A sum of money was distributed among Lyle, Bob, and Chloe. F
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20 Mar 2019, 16:07
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Carcass wrote:
A sum of money was distributed among Lyle, Bob, and Chloe. First, Lyle received $ 4 plus one-half of what remained. Next, Bob received $ 4 plus one-third of what remained. Finally, Chloe received the remaining $ 32. How many dollars did Bob receive?
A. 10
B. 20
C. 26
D. 40
E. 52
Notice that we need not consider Lyle's portion in the solution. We can just let K = the money REMAINING after Lyle has received his portion and go from there. Our equation will use the fact that, once we remove Bob's portion, we have $32 for Chloe. So, we get K - Bob's $ = 32
Bob received 4 dollars plus one-third of what remained Once Bob receives $4, the amount remaining is K-4 dollars. So, Bob gets a 1/3 of that as well. 1/3 of K-4 is (K-4)/3 So ALTOGETHER, Bob receives 4 + (K-4)/3
So, our equation becomes: K - [4 + (K-4)/3 ] = 32 Simplify to get: K - 4 - (K-4)/3 = 32 Multiply both sides by 3 to get: 3K - 12 - K + 4 = 96 Simplify: 2K - 8 = 96 Solve: K = 52
Plug this K-value into K - Bob's $ = 32 to get: 52 - Bob's $ = 32 So, Bob's $ = 20
Re: A sum of money was distributed among Lyle, Bob, and Chloe. F
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20 Mar 2019, 16:08
Carcass wrote:
A sum of money was distributed among Lyle, Bob, and Chloe. First, Lyle received $ 4 plus one-half of what remained. Next, Bob received $ 4 plus one-third of what remained. Finally, Chloe received the remaining $ 32. How many dollars did Bob receive?
A. 10
B. 20
C. 26
D. 40
E. 52
Another approach:
This time, let K = the money REMAINING after Ann has received her portion AND after Bob has taken $4. At this point, Bob receives 1/3 of K, and Chloe gets the rest. This means that Chloe receives 2/3 of K
Since Chloe receives $32, we can say that: (2/3)K = 32 Multiply both sides by 3/2 to get: K = 48
Since Bob receives 1/3 of K plus $4, we can see that the amount Bob gets = (1/3)(48) + 4 = $20
Re: A sum of money was distributed among Lyle, Bob, and Chloe. F
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07 Aug 2019, 13:59
1
I looked at Magoosh's and Brent's solution, which makes sense and is relatively quick. When I tried it I went about it a long way. Specifically, I thought that:
Lyle + Bob + Chloe = Total
I could write Lyle and Bob in terms of Total with the given info and write in 32 for Chloe and then solve for Total. With that I could find Bob.
That was the idea. You can see in the attached calculations I got the wrong answer. I don't know why. Yes, in the future I will do the problem the quick way, as shown by others, but if someone could tell me where I went wrong in my long calculations I would appreciate it (or maybe their is a conceptual flaw in my thinking about it)
Attachments
daum_equation_1565215671335.png [ 165.37 KiB | Viewed 22837 times ]
Re: A sum of money was distributed among Lyle, Bob, and Chloe. F
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16 Nov 2019, 10:46
Carcass wrote:
A sum of money was distributed among Lyle, Bob, and Chloe. First, Lyle received $ 4 plus one-half of what remained. Next, Bob received $ 4 plus one-third of what remained. Finally, Chloe received the remaining $ 32. How many dollars did Bob receive?
A. 10
B. 20
C. 26
D. 40
E. 52
Lets,we (L, B, and C) have total 100$.
Now L received 4 + \(\frac{1}{2}\) of 96 ; (96, because after receiving 4 from 100, remaining is 96);
After that B received 4 + \(\frac{1}{3}\) of 48 ; (48, because after receiving \(\frac{1}{2 }\)of 96 we have remaining 48 only)
Now, we have remain only 32 which is C received. (32, because \(\frac{48}{3}\) = 16; 48 - 16 = 32 remaining lastly )
So, from B, ( 4 + \(\frac{1}{3}\) 48 ), we get, 4 + 16 = 20.
A sum of money was distributed among Lyle, Bob, and Chloe. F
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11 Jun 2022, 12:19
Quick and easy method: Since Bob received $4 plus 1/3 of the remainder, the total between Bob and Chloe can be represented as $32=2/3(T-4). Simplify. 96=2(T-4), 48=T-4, T=52 Then, subtract Chloe's sum from the total between Bob and Chloe. 52-32=$20 B
Re: A sum of money was distributed among Lyle, Bob, and Chloe. F
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19 Apr 2023, 06:33
1
Lets say initial amount is x. Lyle gets an amount of 4+(x-4)/2. Bob gets an amount of 4+(x-4)/(2x3). Chloe gets an amount of 2/3 * (x-4)/2 = (x-4)/3 which is in turn = 32 (given in question). This implies (x-4)/6 = 16 -- (Eqn 1) Therefore, without even solving for x, we can get Bob's amount = 4+(x-4)/6 = 4+16 (Using Eqn 1) = 20. Hence, 20 is the answer.
Re: A sum of money was distributed among Lyle, Bob, and Chloe. F
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19 Aug 2024, 23:57
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Re: A sum of money was distributed among Lyle, Bob, and Chloe. F [#permalink]