two cars start from a certain town and travel in opposite directions one goes north at 55 Km/h and the other goes south at 35 Km/h after how long will they be 135 Km apart?
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Step-by-step explanation:
------>Let cars start from O and one car goes to North at 55 Km/h and other car goes to South at 35 Km/h.
----->Let these cars are apart by 135 Km at time 't'.
--------->Let at time t first car is at A and second car is at B.
=OA+OB = 135
= >As, distance = speed × time
= OA = 55 t and OB = 35 t
=55 t + 35 t = 135t
=90 t=135
= t=1.5 hours
hope it helps mark as brilliant.
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