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30 Jun 2015, 04:25
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
87% (01:52) correct
13%
(01:55)
wrong
based on 142
sessions
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Caleb spends $72.50 on 50 hamburgers for the marching band. If single burgers cost $1.00 each and double burgers cost $1.50 each, how many double burgers did he buy?
A. 5
B. 10
C. 20
D. 40
E. 45
Kudos for a correct solution.
A. 5
B. 10
C. 20
D. 40
E. 45
Kudos for a correct solution.
30 Jun 2015, 04:38
Kudos
Bookmarks
Caleb spends $72.50 on 50 hamburgers for the marching band. If single burgers cost $1.00 each and double burgers cost $1.50 each, how many double burgers did he buy?
A. 5
B. 10
C. 20
D. 40
E. 45
Solution -
Lets say, Single hamburgers x and Double hamburgers y
Given that,
x+y=50 and 1x+1.5y=72.50. By solving the equations y=45. ANS E.
Thanks
Kudos Please
A. 5
B. 10
C. 20
D. 40
E. 45
Solution -
Lets say, Single hamburgers x and Double hamburgers y
Given that,
x+y=50 and 1x+1.5y=72.50. By solving the equations y=45. ANS E.
Thanks
Kudos Please
30 Jun 2015, 10:10
Kudos
Bookmarks
Bunuel
Caleb spends $72.50 on 50 hamburgers for the marching band. If single burgers cost $1.00 each and double burgers cost $1.50 each, how many double burgers did he buy?
A. 5
B. 10
C. 20
D. 40
E. 45
Kudos for a correct solution.
A. 5
B. 10
C. 20
D. 40
E. 45
Kudos for a correct solution.
No. of Single Burger = S
No. of Double Burger = D
$1*S + $1.5*D = 72.50-----------Equation (1)
Total Burgers = S + D = 50-----------Equation (2)
Solving the two equations Simultaneously [Subtract Eq(1) from Eq(2)]
($1*S + $1.5*D) - (S + D) = 72.5 - 50
0.5*D = 22.5
i.e. D = 45
i.e. S = 50-45 = 5
Answer: Option E
