| Q.5 | A software engineer travels to his office at a speed of 72 km/h and returns at a speed of 36 km/h. The average speed of his whole journey is: | |
| Ans | 1. 59 km/h | |
| 2. 54 km/h | ||
| 3. 48 km/h | ||
| 4. 46 km/h |
Correct Ans: 3
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