An inner diameter of a car tyre is 15/4cm and thickness of the type is 5/7 cm. What is the outer radius of the tyre?
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Step-by-step explanation:
Diameter = 15/4
thickness = 5/7 =
Outer diameter = 15/4 + 5/7
Outer radius =(15/4 + 5/7) ÷ 2
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