Question: Sunil left for city X from city Vat 5: 55 am. He travelled at the speed of 80 km/h for 2 h 15 min. After that the speed was reduced to 60 km/h. If the distance between two cities is 350 km, at what time did Sunil reach the city Y?
Options:
A) 10: 05 am
B) 10: 35 am
C) 9: 50 am
D) 9: 55 am
E) 11: 00 am
Show Answer
Answer:
Correct Answer: E
Solution:
- Distance between two cities $ =350km $
Distance travelled by Sunil with the speed of 80 km/h in
$ 2\frac{1}{4}h $ or $ 2.25h=80\times 2.25km=180km $
Remaining distance $ =35-180=170km $
Speed $ =60km/h $
Time taken to reach in city $ X=\frac{170}{60}=2.83h $
Total time $ 2.25+2.83=5.08h $
$ \therefore $ $ \approx 305\min =5h5\min $
Sunil started journey at 5: 55 am and finished the journey = 11: 00 am