Vikas can cover a distance of 20 2/3km in 7 3/4hours on foot. How many km per hour does he walk?
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Answer:
8/3 km per hour
Step-by-step explanation:
Distance traveled by Vikas=20
3
2
km=
3
20×3+2
=
3
62
km
Time taken by vikas to travel this distance=7
4
3
hr=
4
7×4+3
=
4
31
hr
∴speed of vikas=
time taken to travel the distance
distance travelled
∴speed=
4
31
3
62
And we know that,
d
c
b
a
=
b
a
×
c
d
∴speed=
4
31
3
62
=
3
62
×
32
4
=
3×31
62×4
=
3×1
2×4
=
3
8
∴speed of vikas=
3
8
hr
km
Hence, Vikas walks
3
8
km per hour.
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