Question

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 $350$ $km$, at what time did Anna reach city $A$ ?

• A. $9.20$ $a.m.$
• B. $9.25$ $a.m.$
• C. $9.35$ $a.m.$
• D. $10.25$ $a.m.$

Answer 1

Answer: (D)

$10.25$ $a.m.$

Anna traveled distance in 2 hours 15 minutes with speed 80 km\hr=$80\times \frac{9}{4}=180$

Then distance remaining =350-180=170 km

The remaining distance cover 60 km \hr then time taken=$\frac{170}{60}=2.50$ hours

Then the time reach =5.20+2.50+2.15=10.25 am