Answer;
First pulley;
Diameter; 49.0, revolutions 1860 rpm
Second pulley;
Diameter; x ; revolutions 620 rpm
To get the diameter of the second pulley;
= (Diameter of the first × Revolutions of the first)/ revolutions of the second.
= (49 ×1860)/620
= 147
Thus; the diameter of the second pulley is 147.
