A car covers 1/3 distance with speed 20 km/hr and 2/3 with 60 km/hr. Average speed is1. A. 40 km/hr2. B. 50 km/hr3. C. 36 km/hr4. D. 80 km/hr

Question

A car covers 1/3 distance with speed 20 km/hr and 2/3 with 60 km/hr. Average speed is1. A. 40 km/hr2. B. 50 km/hr3. C. 36 km/hr4. D. 80 km/hr
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Solution 1

The average speed of a journey is given by the total distance travelled divided by the total time taken. In this case, the total distance is split into two parts, 1/3 and 2/3, each covered at different speeds.

Step 1: Calculate the time taken for each part of the journey.

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Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv

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