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## How many – how much?

How many – how much? The engineering department was arranging for a rather expensive catered lunch to bid farewell to their retiring colleague. They calculated that it would cost each person \$30. One good mathematician remarked, “It’s lucky that...

## What percentage?

What percentage? If 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have sinus trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments? Click here for the solution 10...

## How much a mango costs?

How much a mango costs? At my favorite fruit stand, an orange costs 18¢, a pineapple costs 27¢, and a grape costs 15¢. Using the same logic, can you tell how much a mango costs? Click here for the solution A mango costs 15¢. The logic is 3¢ per letter. ShareTweet more...

## What is the chance?

What is the chance? You have fifty coins totaling \$1.00. You drop one down an open drain while tossing the coins in your hand. What is the chance that you have lost a quarter? Click here for the solution There are two ways you can have fifty coins totaling \$1.00; two...

## Who was the faster runner?

Who was the faster runner? John was so proud of his running ability that he boasted he could outrun Bill not only in distance but in speed. Naturally Bill scoffed at such a declaration, and the two decided to put it to a test. They found a convenient flat and straight...

## How much did each have?

How much did each have? High finance in the kindergarten: Sheree and Tyler’s play-store was doing well. Sheree, the more successful shopkeeper, had 75¢ in play money plus 75 percent of what Tyler had. The poor unsuccessful salesman had 50¢ in play money plus...