4. A fan rotates at a speed of 123.5 rotations per minute. If the speed of the regulator is adjusted to ind
the speed of the fan 3.5 times, find the number of rotations per minute of the fan.
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Step-by-step explanation:
initially,
no. of rotations = 123.5 per min
after regulating the speed,
no. of rotations = 3×123.5 per min
= 370.5 per min
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