A train covers a distance of 193 1/3 km in 4 1/4 hours with one stoppage of 10 minutes, two of 5 minutes and… · ABC26GN3612
Subject: General Aptitude · Chapter: Time and Distance
A train covers a distance of $193 \frac{1}{3} \mathrm{km}$ in $4 \frac{1}{4}$ hours with one stoppage of 10 minutes, two of 5 minutes and one of 3 minutes on the way. The average speed of the train is
(a)48 km/hr
(b)50 km/hr
(c)55 km/hr
(d)60 km/hr
Answer
Answer (as printed): B
Explanation
Actual time taken for the journey $=4 \mathrm{hrs} 15 \mathrm{min}-(10+2 \times 5+3) \mathrm{min}$ $=4 \mathrm{hrs} 15 \mathrm{min}-23 \mathrm{min}=3 \mathrm{hrs} 52 \mathrm{min}=3 \frac{26}{30} \mathrm{hrs}=\frac{116}{30} \mathrm{hrs}$. $$\text { ∴ Average speed }=\left(\frac{580}{3} \times \frac{30}{116}\right) \mathrm{km} / \mathrm{hr}=50 \mathrm{km} / \mathrm{hr} .$$