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Brainteasers and Pure Mathematics› Algebra and Word Problems› 32.2 Rates, Work and Motion
Problem 32.33 ★★★Easy Coming soon

Average Speed Is a Harmonic Mean

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Try 32.31 Combined Work Rates
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Section 32.2

Rates, Work and Motion Toolkit
  1. 32.31Combined Work Rates
  2. 32.32Speed With and Against a Current
  3. 32.33Average Speed Is a Harmonic Mean
  4. 32.34Chained Race Margins
  5. 32.35Angle Between Clock Hands
  6. 32.36When the Clock Hands Meet
  7. 32.37Two Burning Candles
  8. 32.38Fly Between Two Cars
  9. 32.39Three Cars Passing
  10. 32.40Ships Meeting Midway
  11. 32.41Courier Along a Marching Army
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