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Bunuel
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A cabdriver’s income consists of his salary and tips. His salary is $5 24 Oct 2017, 01:27
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C
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Question Stats:

79% (01:47) correct 21% (01:39) wrong based on 116 sessions

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A cabdriver’s income consists of his salary and tips. His salary is $50 a week. During one week his tips were 5/4 of his salary. What fraction of his income for the week came from tips?

(A) 4/9
(B) 1/2
(C) 5/9
(D) 5/8
(E) 5/4
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C
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A cabdriver’s income consists of his salary and tips. His salary is $5 24 Oct 2017, 02:21
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The cab driver's tips = 5/4 of his salary

Hence, his total income = 1 + 5/4 = 9/4

So, fraction of his income for the week came from tips = (5/4)/(9/4) = 5/9

Ans: C.
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A cabdriver’s income consists of his salary and tips. His salary is $5 26 Oct 2017, 04:04
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Total salary for the week(salary+5/4 of the salary)=$50+(50*5/4)=50+250/4=450/5
Tip amount=50*5/4=250/4
Fraction =Tip/Total Salary=(250/4)÷(450/4)=250/250=5/9=Ans C
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A cabdriver’s income consists of his salary and tips. His salary is $5 30 Oct 2017, 13:58
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Bunuel
A cabdriver’s income consists of his salary and tips. His salary is $50 a week. During one week his tips were 5/4 of his salary. What fraction of his income for the week came from tips?

(A) 4/9
(B) 1/2
(C) 5/9
(D) 5/8
(E) 5/4
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We can let t = the value of the driver’s tips; thus:

t = (5/4) x 50 = 250/4 = 62.5

Thus, the fraction of his income that came from tips was 62.5/(50 + 62.5) = 62.5/112.5 = 625/1125 = 125/225 = 25/45 = 5/9.

Answer: C
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A cabdriver’s income consists of his salary and tips. His salary is $5 30 Oct 2017, 19:41
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I went with C. But I multiplied it all out and I see there's an easier way to do it and let his salary = 1.

Nice tip.
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A cabdriver’s income consists of his salary and tips. His salary is $5 14 Nov 2017, 11:12
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Avoid unnecessary decimals and complicated math.

Total income is \(50+\frac{5}{4}*50 = \frac{450}{4}\)

\(Tips = \frac{250}{4}\)

\(\frac{Part}{whole} = fraction\)

\(\frac{250}{4} * \frac{4}{450} = \frac{5}{9}\)
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A cabdriver’s income consists of his salary and tips. His salary is $5 04 Feb 2021, 07:13
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