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Alberto saves $12 each week. Dahlia has already saved $270,
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05 Jan 2021, 09:38
05 Jan 2021, 09:38
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Alberto saves $12 each week. Dahlia has already saved $270, and each week she spends $15 of that savings. When they both have the same amount in savings, they combine their money. What is the combined amount?
A. $120
B. $216
C. $240
D. $390
E. $432
Kudos for the right answer and explanation
A. $120
B. $216
C. $240
D. $390
E. $432
Kudos for the right answer and explanation
Re: Alberto saves $12 each week. Dahlia has already saved $270,
[#permalink]
06 Jan 2021, 00:07
06 Jan 2021, 00:07
1
Dahlia has 270. And she will spend 15/week. So she has 18 week's of money.
Let's take x as the no of week, Dahlia spends money.
Now it is mentioned that, when they both have the same amount in savings.
So we can make a linear equation.
\(15(18-x) = 12x\)
\(15*18 = 27x\)
x = 10 weeks.
So in 10 weeks,
Alberto's saving = 12 * 10 = 120
Dahlia's saving = 15 (18-10) = 120
Total 240
Answer C
Let's take x as the no of week, Dahlia spends money.
Now it is mentioned that, when they both have the same amount in savings.
So we can make a linear equation.
\(15(18-x) = 12x\)
\(15*18 = 27x\)
x = 10 weeks.
So in 10 weeks,
Alberto's saving = 12 * 10 = 120
Dahlia's saving = 15 (18-10) = 120
Total 240
Answer C
gmatclubot
Re: Alberto saves $12 each week. Dahlia has already saved $270, [#permalink]
06 Jan 2021, 00:07
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