A tractor driving pulley has its 25 cm diameter and revolving at a spe – McqOptions

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1.	A tractor driving pulley has its 25 cm diameter and revolving at a speed of 960 r.p.m. If on the shaft of a thresher, an attached pulley is revolving at a speed of 1600 r.p.m. what would be the diameter of this pulley ?
A.	16 cm
B.	15 cm
C.	12 cm
D.	20 cm
Answer» D. 20 cm

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