Anna left for city A from city B at 5.20 am. 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 reach city A ?

Answer: Option E

Distance covered in 2 hrs 15 min, i.e.,
= $$2\frac{1}{4}$$ hrs = $$\left(80\times \frac{9}{4}\right)$$  hrs = 180 hrs
Time taken to cover remaining distance :
$$\begin{array}{rl}& =\left(\frac{350-180}{60}\right)\text{ hrs}\\ & =\frac{17}{6}\text{ hrs}\\ & =2\frac{5}{6}\text{ hrs}\\ & =2\text{ hrs }50\min \end{array}$$
Total time taken :
(2 hrs 15 min + 2 hrs 50 min) = 5 hrs 5 min
So, Anna reached city A at 10.25 am