state gov Rajasthan Gram Vikas Adhikari (VDO) Mock Test 2021 Quantitative Aptitude Speed Time and Distance Relative Speed
Two dogs start from a place running at 30 km/hr and 40 km/hr respectively. How many km will they be cover at the end of 2 hr, if they running in opposite direction?
1
140 km
2
120 km
3
220 km
4
310 km