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Z04 Math
Question 44
2021 April(Z04) Math Question 44
Word Problems
- % Concentration
Percentages
Choice G
Given that
T
o
t
a
l
v
o
l
u
m
e
=
25
l
i
t
e
r
s
Total\quad volume=25 \; liters
T
o
t
a
l
v
o
l
u
m
e
=
25
l
i
t
ers
P
e
r
c
e
n
t
a
g
e
o
f
s
o
l
v
e
n
t
=
40
%
Percentage\quad of\quad solvent=40\%
P
erce
n
t
a
g
e
o
f
so
l
v
e
n
t
=
40%
P
e
r
c
e
n
t
a
g
e
o
f
w
a
t
e
r
=
60
%
Percentage\quad of\quad water=60\%
P
erce
n
t
a
g
e
o
f
w
a
t
er
=
60%
So,
V
o
l
u
m
e
o
f
s
o
l
v
e
n
t
=
{
4
0
}
{
100
}
×
25
Volume\quad of\quad solvent=\frac\{40\}\{100\}\times25
V
o
l
u
m
e
o
f
so
l
v
e
n
t
=
4
{
0
}
{
100
}
×
25
=
10
l
i
t
e
r
s
=10\quad liters
=
10
l
i
t
ers
V
o
l
u
m
e
o
f
w
a
t
e
r
=
{
6
0
}
{
100
}
×
25
Volume\quad of\quad water=\frac\{60\}\{100\}\times25
V
o
l
u
m
e
o
f
w
a
t
er
=
6
{
0
}
{
100
}
×
25
=
15
l
i
t
e
r
s
=15\quad liters
=
15
l
i
t
ers
L
i
t
e
r
s
t
o
a
d
d
=
15
−
10
=
5
l
i
t
e
r
s
Liters \quad to\quad add=15-10=5 \quad liters
L
i
t
ers
t
o
a
dd
=
15
−
10
=
5
l
i
t
ers
Skills you are tested for:
Percentages
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