MathDB
Problems
Contests
National and Regional Contests
USA Contests
MAA AMC
AMC 12/AHSME
1956 AMC 12/AHSME
2
2
Part of
1956 AMC 12/AHSME
Problems
(1)
Mr. Jones' Pipes
Source:
2/14/2009
Mr. Jones sold two pipes at
$
1.20
\$ 1.20
$1.20
each. Based on the cost, his profit one was
20
%
20 \%
20%
and his loss on the other was
20
%
20 \%
20%
. On the sale of the pipes, he:
<
s
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a
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x
−
b
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>
(
A
)
<
/
s
p
a
n
>
broke even
<
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a
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x
−
b
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>
(
B
)
<
/
s
p
a
n
>
lost
4
cents
<
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a
s
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a
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x
−
b
o
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>
(
C
)
<
/
s
p
a
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>
gained
4
cents
<
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p
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a
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a
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x
−
b
o
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>
(
D
)
<
/
s
p
a
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>
lost
10
cents
<
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=
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a
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x
−
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>
(
E
)
<
/
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p
a
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>
gained
10
cents
<span class='latex-bold'>(A)</span>\ \text{broke even} \qquad<span class='latex-bold'>(B)</span>\ \text{lost } 4\text{ cents} \qquad<span class='latex-bold'>(C)</span>\ \text{gained } 4\text{ cents} \qquad<span class='latex-bold'>(D)</span>\ \text{lost } 10 \text{ cents} \qquad<span class='latex-bold'>(E)</span>\ \text{gained } 10 \text{ cents}
<
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p
an
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l
a
ss
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l
a
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x
−
b
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>
(
A
)
<
/
s
p
an
>
broke even
<
s
p
an
c
l
a
ss
=
′
l
a
t
e
x
−
b
o
l
d
′
>
(
B
)
<
/
s
p
an
>
lost
4
cents
<
s
p
an
c
l
a
ss
=
′
l
a
t
e
x
−
b
o
l
d
′
>
(
C
)
<
/
s
p
an
>
gained
4
cents
<
s
p
an
c
l
a
ss
=
′
l
a
t
e
x
−
b
o
l
d
′
>
(
D
)
<
/
s
p
an
>
lost
10
cents
<
s
p
an
c
l
a
ss
=
′
l
a
t
e
x
−
b
o
l
d
′
>
(
E
)
<
/
s
p
an
>
gained
10
cents