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The average of six numbers is X and the average of three of these is Y.If the average of the remaining three is z, then

  • x = y + z
  • 2x = y + z
  • x = 2y + z
  • x = y + 2z
Similar Questions :

1. Find the sum of first 30 natural numbers

  • 470
  • 468
  • 465
  • 463

2. A motorist travel to a place 150 km away at an avearge speed of 50 km/hr and returns ar 30 km/hr.His average speed for the whole jouney in km/hr is

  • 36.5 km/hr
  • 37.5 km/hr
  • 35.5 km/hr
  • 34.5 km/hr

3. Find the average of first 10 multiples of 7

  • 35.5
  • 37.5
  • 38.5
  • 40.5

4. Average of 10 matches is 32, How many runs one should should score to increase his average by 4 runs.

  • 70
  • 76
  • 78
  • 80

5. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is

  • 54.48
  • 54.68
  • 54.60
  • 54.58
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