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A ball is dropped from 80 m. After each bounce it rises to half the previous height.
The heights form the pattern 80, 40, 20, ...
What height does it reach after the 4th bounce?

Class 10Geometric PatternsAlgebra — Sequences
  • A10 m
  • B5 m
  • C2.5 m
  • D20 m

Step-by-Step Solution

Heights: 80, 40, 20, 10, 5 (after bounces 1 to 4 = 40, 20, 10, 5). After 4th bounce = m.
Answer: B) 5 m

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