A mountain bike tire completes 20 revolutions and travels 136 feet. Rounded to the nearest inch, what is the diameter of the bike’s tire? Use 3.14 for pi.
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Given:–mountain bike tire completes 20 revolutions and travels 136 feet. Rounded to the nearest inch, what is the diameter of the bike’s tire? Use 3.14 for pi.
Given :– mountain bike tire completes 20 revolutions and travels 136 feet. Rounded to the nearest inch, what is the diameter of the bike’s tire? Use 3.14 for pi.
Answer :–
→ Distance covered in 20 revolutions = 136 feet
→ Distance covered in 1 revolution = 136/20 = 6.8 feet.
now, let diameter of bike tire is D feet .
so,
→ Circumference = Distance travelled in one round = π * D
→ 3.14 * D = 6.8
→ D = 6.8/3.14 = 2.16 feet .
now, convert into inch .
→ 1 feet = 12 inch .
→ 2.16 feet = 12 * 2.16 = 25.92 ≈ 26 inch (Ans.)
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