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E23 Math
Question 9
2021 December(E23) Math Question 9
Word Problems
- 1 Variable Equations
Algebraic Problems, Fractions
Choice B
T
o
t
a
l
g
a
l
l
o
n
s
=
4
Total\; gallons=4
T
o
t
a
l
g
a
ll
o
n
s
=
4
g
a
l
l
o
n
s
u
s
e
d
b
y
L
y
l
e
=
{
1
}
{
2
}
gallons\; used\; by\; Lyle=\frac\{1\}\{2\}
g
a
ll
o
n
s
u
se
d
b
y
L
y
l
e
=
1
{
}
{
2
}
g
a
l
l
o
n
s
u
s
e
d
b
y
M
i
n
g
=
1
{
1
}
{
4
}
gallons\; used\; by\; Ming=1\frac\{1\}\{4\}
g
a
ll
o
n
s
u
se
d
b
y
M
in
g
=
1
1
{
}
{
4
}
∴
T
o
t
a
l
G
a
l
l
o
n
s
l
e
f
t
=
4
−
{
1
}
{
2
}
−
1
{
1
}
{
4
}
=
2
{
1
}
{
4
}
\therefore Total\; Gallons\; left=4-\frac\{1\}\{2\}-1\frac\{1\}\{4\}=2\frac\{1\}\{4\}
∴
T
o
t
a
l
G
a
ll
o
n
s
l
e
f
t
=
4
−
1
{
}
{
2
}
−
1
1
{
}
{
4
}
=
2
1
{
}
{
4
}
Skills you are tested for:
Algebraic Problems
Fractions
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