exam
Maths Puzzle
A man travelled a distance of 90Km in 9 hours partly on foot at 8 kmph and partly on bicycle at 17 kmph. Find the distance travelled on foot.
A.
46 km
B.
56 km
C.
62 km
D.
52 km
Read Solution (Total 2)
-
- Distance covered in 1 hour on foot = 8 km
Distance covered in 1 hour on bicycle = 17 km
Average distance covered in 1 hour = 90/9 km = 10km (mean distance)
Distance covered in Distance covered in
1 hour on foot 1 hour on bicycle
(8 km) (17 km)
/
Mean Distance
(10 km)
/
(17 – 10) : (10 – 8)
7 2
Thus out of 9 hours, he took 7 hours on foot
Distance covered on foot = (8 × 7) Km = 56 km - 7 years agoHelpfull: Yes(0) No(0)
- Distance covered in 1 hour on foot = 8 km
Distance covered in 1 hour on bicycle = 17 km
Average distance covered in 1 hour = 90/9 km = 10km (mean distance)
Distance covered in Distance covered in
1 hour on foot 1 hour on bicycle
(8 km) (17 km)
/
Mean Distance
(10 km)
/
(17 – 10) : (10 – 8)
7 2
Thus out of 9 hours, he took 7 hours on foot
Distance covered on foot = (8 × 7) Km = 56 km - 5 years agoHelpfull: Yes(0) No(0)
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