Two cars start from a certain place and travel in opposite directions one goes at 55 km/h and other at 35km/h. After how many will they be 135 KM apart
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Answer:
1.5 hours
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.
according to the question -
=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
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