Quantitative Aptitude Ques 193
Question: A scooter covers a distance of 30 km travelling at an average speed of 36 km/h. What distance can the scooter travel in the same time, if it increases its speed to 42 km/h? [LIC (ADO) 2015]
Options:
A) 45 km
B) 32 km
C) 38 km
D) 40 km
E) 35 km
Show Answer
Answer:
Correct Answer: E
Solution:
- Distance [d] = 30 km
Speed (v) $ =36km/h $
$ \Rightarrow $ Then, $ v=\frac{d}{t} $
$ Time,(t),=\frac{d}{v}=\frac{30}{36} $
$ \Rightarrow $ $ t=\frac{5}{6}h $
If speed = 42 km /h
Then, distance cover by the scooter in the same time $ =\frac{5}{6}\times 42=5\times 7=35,km $