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cylindrical chocolate has height 80 cm and radius 4 cm. After rolling 1 time along its curved surface area, its height increases by 10%. If the roll is rolled for 3 times in all, what will be the radius of the cylindrical chocolate at the end of the third cycle?
  • a)
    2.5 cm
  • b)
    3 cm
  • c)
    3.5 cm
  • d)
    4.5 cm
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
cylindrical chocolate has height 80 cm and radius 4 cm. Afterrolling 1...
Though the height increases, the volume remains constant, so the radius decreases.
Hence, option 3.
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Most Upvoted Answer
cylindrical chocolate has height 80 cm and radius 4 cm. Afterrolling 1...
The final radius is 80(1.1)³=106.48
π*16*80=π*R²*106.48
Solve for R, obtain R=3.467~3.5
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Community Answer
cylindrical chocolate has height 80 cm and radius 4 cm. Afterrolling 1...
Though the height increases, the volume remains constant, so the radius decreases.
Hence, option 3.
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cylindrical chocolate has height 80 cm and radius 4 cm. Afterrolling 1 time along its curved surface area, its height increases by 10%. If the roll is rolled for 3 times in all, what will be the radius of the cylindrical chocolate at the end of the third cycle?a)2.5 cmb)3 cmc)3.5 cmd)4.5 cmCorrect answer is option 'C'. Can you explain this answer?
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