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Determine the gear ratio for a bike with 45 front teeth and 18 rear sprocket teeth.
18/45 = 0.4

45/18 = 2.5

18(45) = 810

45 – 18 = 27

Respuesta :

Answer: Second option is correct.

Step-by-step explanation:

Since we have given that

Number of front teeth = 45

Number of rear sprocket teeth = 18

Ratio of front teeth to rear sprocket teeth would be

Number of front teeth : Number of rear sprocket teeth

[tex]45:18\\\\=\dfrac{45}{18}\\\\=2.5[/tex]

Hence, Second option is correct.

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