There is a certain club which is for men only. There are 600 men who belong to this club and 5% of these men wear one ear-ring. Of the other 95% membership, half wear two ear-rings and the other half wear none. How many ear-rings are being worn in this club?
Answer
Six hundred. We know that 5%, or 30 people of the men are wearing one ear-ring. Of the other 95%, 570, we know that half are wearing two ear-rings and the other half none. This is the same as if they all wore one.