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Together, a racket and a ball cost a total of $1.10. The racket costs exactly $1 more than the ball. What does the ball cost?
Together, a racket and a ball cost a total of $1.10. The racket costs exactly $1 more than the ball. What does the ball cost?

Interesting fact

If you tied all the nerve tracts in an adult human body together from end to end, you'd get a thread that is 5.8 million kilometres in length – enough to swathe the earth 145 times!

Fact Lab

Interesting Fact
As far as marketing is concerned, blue is a great color! It’s by far the most popular color in the world, so you may notice campaigns making great use of it. On the other hand, white, yellow and orange are the least favorite colors worldwide.
Interesting Fact
Did you know that English is completely without guidance? It’s the only major language in the world that doesn’t have an organization guiding it. The French have the Académie Française, Spanish has Real Academia Española and German has the Rat für Deutsche Rechtschreibung. These organizations are responsible for controlling the evolution of their respective language in terms of usage, vocabulary, and grammar. English, however, well, we just make it up as we go along.
Interesting Fact
One of the more innovative forms of navigation in the past is known as dead reckoning. The idea was simple: A stretch of rope with knots tied at regular distances was attached to a log and then thrown overboard. By counting the number of knots that went over the side before pulling the log back in, sailors could estimate their speed! They would then note this every day in logbooks to tell how far they were traveling over long distances. Ever wondered why a ship’s speed was measured in knots? Well, now ya know!

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