5% of a consignment of bulbs were tested for faults. 3% or 30 of these bulbs...

T

Tonny

New member
...were found to be faulty.? How many of bulbs were there in the consignment?

PLEASE INCLUDE WORKING OUT AND ANSWER

Thanks, please help.
 
The key to solving this problem is the second line.
>>3% or 30 bulbs were faulty<<

If 3% = 30 bulbs, then 100% = 1,000 bulbs.

So 1000 bulbs were tested, but that only accounts for 5% of the consignment, right?
5% = 1,000 bulbs, then 20,0000 = 100%

Good luck in your studies,
~ Mitch ~
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