In covering a distance of 30 km, Sachin takes 2 hours more than Rohit. If Sachin
doubles his speed, then he would take 1 hour less than Rohit. Sachin speed is:
5 kmph
16 kmph
21 kmph
None of these
Explanation:
Let Sachins speed be X km/hr.
Then, 30/x - 30/2x = 3
6x = 30
x = 5 km/hr.
Let Sachins speed be X km/hr.
Then, 30/x - 30/2x = 3
6x = 30
x = 5 km/hr.