Teaching EMRS JSA (Junior Secretariat Assistant) Mock Test Series 2023 Quantitative Aptitude Speed Time and Distance Average Speed
A car covers the first one-third of a certain distance at 40 km/h, the next one-third at 80 km/h, and the last one-third at 100 km/h. What is the average speed of the car for the whole journey?
1
\(67\frac{11}{19}\) km/h
2
\(65\frac{9}{19}\) km/h
3
\(63 \frac{3}{19}\) km/h
4
\(64 \frac{17}{19}\) km/h