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A motorist travels to a place 150 km awa...

A motorist travels to a place 150 km away at an average speed of 50 km/hour and returns at 30 km/hour. What is the average speed for the whole journey ?

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The correct Answer is:
37.5 `km//hr`.
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MAHENDRA-AVERAGE-EXERCISE
  1. A motorist travels to a place 150 km away at an average speed of 50 km...

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  2. The average of first five multiples of 3 is:

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  3. A library has an average of 510 visitors on Sunday and 240 on other da...

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  4. The average of 50 numbers is 30. If two numbers are 35 and 40 then the...

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  5. The average score of a cricketer for ten matches is 38.9 runs. If the ...

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  6. Average of ten positive numbers is barx. If each numbers is increased ...

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  7. A class has two sections, in one of which there are 40 students with a...

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  8. The average of 50 numbers is 38. If the two numbers 45 and 55 are not ...

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  9. The mean of 100 observations was calculated as 40. It was found later ...

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  10. The average of six numbers is 30. If the average of first four is 25 a...

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  11. The average of 25 results is 18. The average of first twelve of them i...

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  12. Out of four numbers, the average of first three is 16 and that of the ...

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  13. Mukesh has twice as much moncy as Soham. Soham has 50% more money than...

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  14. The average of 30 students is 9 years. If the age of their teacher is ...

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  15. The average weight of 50 balls is 2 lbs. If the weight of the containe...

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  16. The average salary per month of 30 employees in a company is Rs. 4000....

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  17. The average weight of 8 men is increased by 1.5 kg when one of the men...

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  18. The average of five consecutive odd numbers is 61. What is the differe...

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  19. The average marks obtained by 22 candidates in an examination are 45. ...

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  20. The average weight of 8 persons is increased by 2.5 kg. When one of th...

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  21. The questions given below consists of a question followed by three sta...

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