A machine makes electric bulb, in which 3 out of every 65 are found to be faulty.it made 45 faulty bulbs in a day .how many good bulbs were made that day?
Plz tell me in straight ans
(moonlight phenonix)
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Given A machine makes electric bulb, in
which 3 out of every 65 are found to be faulty. It made 45 faulty bulbs in a day. How many good bulbs were made that day
Total number of bulbs is 65 and faulty bulbs will be 65 3 = 62
It made 45 bulbs in a day.
So there are 62 faulty bulbs
For 3 bulbs faulty bulbs are 62
So for 45 bulbs we get
65 x 42/3
62 x 15
930 bulbs
So 930 good bulbs were made that day.
hope it helps!
Sorry I am not moonlight phenonix
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