Question

Two cars start from a house at an interval of 10 minutes and travel at a speed of 20 km/hr. With how much speed (km/hr.) should a woman coming from the opposite direction towards the house travel, to meet the cars at an interval of 8 minutes?

A 5 Correct Answer Incorrect Answer
B 6 Correct Answer Incorrect Answer
C 7 Correct Answer Incorrect Answer
D 4 Correct Answer Incorrect Answer

Solution

The correct answer is A

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