1.

Two ships A and B are sailing away from a point O along routes such that angle AOB is always 120^(@). At a certain instance, OA = 8 KM OB = 6km and the ship A is sailing at the rate of 20 km/hr while the ship B sailing at the rate of 30km/hr while the ship B sailing at the rate of 30 km/hr. Then the distance between A and B is changing at the rate (in km/hr)

Answer»

`(260)/(SQRT(37))`
`(260)/(37)`
`(80)/(sqrt(37))`
`(80)/(37)`

ANSWER :A


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