1. You own a Sprite bottling factory with 960 machines. An inspector observes yo

Question

1. You own a Sprite bottling factory with 960 machines. An inspector observes your factory and mandates that you must decrease your sound decibel level from the current value of 84dB down to 68dB. Assuming you can only remove machines
(a) How many machines do you need to remove from the premises?
(b) Your new manager is proud of himself. He sold some of your machines to a Pepsi bottler and reduced the decibel level to 62dB. How many machines do you have left?
(c) What is the decibel level of one bottling machine?

Explanation / Answer

A)

sound level per machine = 84/960 = 0.0875

so,

no. of machines to remove = (84-68)/0.0875 = 182.85 == 183

B)

(960-183)-0.0875*(68-62) = 776.475 == 776

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