Gear

Two gears, fit into each other, has transfer 2:3. Centres of gears are spaced 82 cm. What are the radii of the gears?

Correct result:

r1 =  49.2 cm
r2 =  32.8 cm

Solution:

r1=82(23+1)=49.2 cm
r2=23r1=32.8 cm

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