50. Anna left for city A from city B at 5.20 a.m. She
travelled at the speed of 80 km/hr for 2 hours
15 minutes. After that the speed was reduced to
60 km/hr. If the distance between two cities is 350
kms, at what time did Anna reach city A?
(a) 9.20 a.m.
(b) 9.25 a.m.
(c) 9.35 a.m.
(d) 10.05 a.m
(e) None of these
tance at a speed
Answers
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Answer:
Distance from A to B=350kms
Anna travelled Ist
-part=80km/hrx2 1/4 = 180kms
Remaining=350-180=170 km
time taken for 170 km, at 60km/hr
=170 / 60=17/6=2 5/6 hrs
2 hrs 50 min
Total time = 2.15+2.50 = 5.05
Anna reaches A at 5.20+5.05
= 10.25am
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