A cycle wheel completes 5000 rounds in 44 km. Find the radius of wheel

1.	A cycle wheel completes 5000 rounds in 44 km. Find the radius of wheels? (π = 22/7)A. 140 cmB. 270 cmC. 70 cmD. 120 cm1. A2. C3. B4. D
Answer» Correct Answer - Option 1 : A Given: Total distance = 44km Number of rotation = 5000 Concept used: Total distance = Number of rotation × Circumference of wheels Circumference of circle = 2πr Calculation: Total distance = Number of rotation × Circumference of wheels ⇒ 44 × 100000 cm = 5000 × 2πr ⇒ 44 × 100000 cm = 5000 × 2 × 22/7 × r ⇒ r = (44 × 100000 × 7)/(5000 × 2 × 22) ⇒ r = 140 cm ∴ The radius of wheels is 140 cm.

A cycle wheel completes 5000 rounds in 44 km. Find the radius of wheels? (π = 22/7)A. 140 cmB. 270 cmC. 70 cmD. 120 cm1. A2. C3. B4. D

Answer» Correct Answer - Option 1 : A

Given:

Total distance = 44km

Number of rotation = 5000

Concept used:

Total distance = Number of rotation × Circumference of wheels

Circumference of circle = 2πr

Calculation:

Total distance = Number of rotation × Circumference of wheels

⇒ 44 × 100000 cm = 5000 × 2πr

⇒ 44 × 100000 cm = 5000 × 2 × 22/7 × r

⇒ r = (44 × 100000 × 7)/(5000 × 2 × 22)

⇒ r = 140 cm

∴ The radius of wheels is 140 cm.

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A cycle wheel completes 5000 rounds in 44 km. Find the radius of wheels? (π = 22/7)A. 140 cmB. 270 cmC. 70 cmD. 120 cm1. A2. C3. B4. D

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