state gov UP Police Assistant Operator (Radio Cadre) Mock Test Quantitative Aptitude Speed Time and Distance Relative Speed
A and B start their journey of 40 km from the same point with speeds of 10 km/h and 8 km/h respectively. B starts 30 minutes after A. On reaching the destination, A turns back and meets B. How much time does B take to meet A?
1
5 h 10 min
2
4 h 40 min
3
2 h 40/3 min
4
4 h 10 min