15. Distance from place X to Y is 45 metre and time taken by a person to cover
this distance is 9 seconds. The speed of that person in km/h is:
(A) 18 km/h
(B) .5 km/h
(C) 9 km/h
(D) 20 km/h
(E) None of these
Answers
Answered by
6
18 km / hr
x to y is 45 metre so
d = 45 metres
t= 9 sec
s= 45/9 = 5
m/ sec= km/hr
5 into 18/5
= 18
therefore answer is 18
Answered by
3
Answer: 18 km/hr
Step-by-step explanation: X - Y = 45 m in 9 sec
D = 45
T = 9
speed = distance / time
= 45/9
= 5
5 into 18 / 5
: therefore = 18
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