Teaching KVS Junior Secretariat Assistant (LDC) Mock Test 2022 Quantitative Aptitude Speed Time and Distance Boat and River
Arjun takes 5 hrs. to swim upstream of 40 km where as he takes only 2 hrs. to swim downstream of 20 km. Find the speed of Arjun in still water.
1
15 kmph
2
10 kmph
3
12 kmph
4
9 kmph