To arrive at its destination on time, a bus should have maintained a speed of VV kmh throughout its journey. Instead, after going the first third of the distance at VV kmh, the bus increased its speed and went the rest of the distance at (1.2)*V(1.2)*V kmh. If, as a result, the bus arrived at its destination XX minutes earlier than planned, what was the actual duration of the trip?
(1) V=60V=60
(2) X=20
[spoiler]OA=B[/spoiler]
Source: GMAT Club Tests
(1) V=60V=60
(2) X=20
[spoiler]OA=B[/spoiler]
Source: GMAT Club Tests
