18. A man can reach a certain place in 30 hours. If he re- í duces his speed by 15 comes 10 km less in that time. Find his speed in km per hour. th, he 24 (a) 6 km/hr. (b) (b) 5 km/hr. 2 (c) 4 km/hr. (d) 5 km/hr.
Answers
Answered by
1
Answer:
Let the man's speed be x km/hr.
Distance covered in 30 hours = 30x km
New speed = [x−
15
x
]km/hr=
15
14x
km/hr
Distance covered in 30 hours =
15
14x
×30= 28x km Given,30x−28x=10km ⇒ x=5km/hr
Similar questions