A and B started towards each other simultaneously with velocities 40 kmph and 50 kmph respectively. If they meet each other after 20 minutes, what would be the distance between A and B when they started? Ops: A. 75 km B. 60 km C. 45 km D. 30 km
Question
A and B started towards each other simultaneously with velocities 40 kmph and 50 kmph respectively. If they meet each other after 20 minutes, what would be the distance between A and B when they started? Ops: A. 75 km B. 60 km C. 45 km D. 30 km
Solution
Step 1: Convert the speeds from km/h to km/min.
A's speed = 40 km/h = 40/60 km/min = 2/3 km/min B's speed = 50 km/h = 50/60 km/min = 5/6 km/min
Step 2: Calculate the total distance they covered in 20 minutes.
Total distance = (A's speed + B's speed) * time Total distance = ((2/3 km/min + 5/6 km/min) * 20 min) = 25 km
So, the distance between A and B when they started was 25 km. None of the options A, B, C, or D is correct.
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