Select the correct answerTwo cyclists P and Q cycle at 20 km/hr and 25 km/hr towards each other. What was the distance (in kms) between them when they started if they met after 56 minutes?Options36424539
Question
Select the correct answerTwo cyclists P and Q cycle at 20 km/hr and 25 km/hr towards each other. What was the distance (in kms) between them when they started if they met after 56 minutes?Options36424539
Solution
To solve this problem, we need to understand that when two objects are moving towards each other, their relative speed is the sum of their individual speeds.
Step 1: Convert the time from minutes to hours. 56 minutes = 56/60 = 0.933 hours.
Step 2: Calculate the relative speed of the two cyclists. The relative speed = speed of P + speed of Q = 20 km/hr + 25 km/hr = 45 km/hr.
Step 3: Calculate the distance. The distance is the product of the time and the relative speed. Distance = time * speed = 0.933 hours * 45 km/hr = 42 km.
So, the correct answer is 42 km.
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