[" (a) "19.8],[" 69.Two cyclists start from the same place in opposite directions.One goes towards north "],[" at "18kmph" and the other goes towards south at "20kmph" .What time with they dake "],[" to be "47.5km" apart? "]

Two cyclists start from the same place in opposite directions. One goes towards north at 18 kmph and the other goes towards south at 20 kmph. What time will they take to be 47.5 km apart? 1 1/4h r s b. 2 1/4h r s c. 2 h r s .23 m in d. 2 1/2h r sdot

Two aeroplanes start from the same place in opposite directions. One goes towards east at 320 km/h and the other goes towards west at 400 km/h what time will they take to be 720 km apart?

Two aeroplanes start from the same place in opposite directions one goes towards east at 320 km/h and the other goes towards west at 400 km/h what time will they take to be 720 km apart?

Two ships are 10km apart on a line from south to north.The one farther north is moving towards west at 40kmph and the other is moving towards north at 40kmph .Then distance of their closest approach is

Two cars A and B start moving from the same point with same velocity v=5km/minute. Car A moves towards North and car B in moving towards East. What is the relative velocity of B with respect to A ?