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E23 Math
Question 27
2021 December(E23) Math Question 27
Word Problems
- Distance, Speed, Time
Unit Conversions (Feet to inches, miles to feet, hours to seconds)
Choice D
1
m
i
l
e
=
5280
f
t
1\; mile=5280\; ft
1
mi
l
e
=
5280
f
t
S
t
e
p
s
o
n
p
e
d
o
m
e
t
e
r
=
3898
Steps\; on\; pedometer=3898
St
e
p
s
o
n
p
e
d
o
m
e
t
er
=
3898
1
s
t
e
p
=
2.25
f
t
1\; step=2.25\; ft
1
s
t
e
p
=
2.25
f
t
∴
D
i
s
t
a
n
c
e
i
n
f
e
e
t
=
3898
×
2.25
=
8770
f
t
\therefore Distance\; in\; feet=3898\times2.25=8770\; ft
∴
D
i
s
t
an
ce
in
f
ee
t
=
3898
×
2.25
=
8770
f
t
and
∴
D
i
s
t
a
n
c
e
i
n
n
e
a
r
e
s
t
m
i
l
e
=
{
8
770
}
{
5280
}
=
1.66
≈
1.7
\therefore Distance\; in\; nearest\; mile=\frac\{8770\}\{5280\}=1.66\approx1.7
∴
D
i
s
t
an
ce
in
n
e
a
res
t
mi
l
e
=
8
{
770
}
{
5280
}
=
1.66
≈
1.7
Skills you are tested for:
Unit Conversions (Feet to inches, miles to feet, hours to seconds)
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