πQuest

Which mathematician introduced the symbol π to represent the ratio of a circle's circumference to its diameter?

• Blaise Pascal

• Isaac Newton

• Leonhard Euler

• William Jones

Pi is transcendental.  What does this mean, in mathematics?

• It is equal to the ratio of two integers

• Its square root is imaginary

• It cannot be expressed as an integer, or as a root or quotient of integers

• It was Ralph Waldo Emerson’s favourite number.

If a square's each side is increased by x units, then, after that, its perimeter is increased by how many units?

• 2x

• 4x

• x

• 8x

What is next in the following number series: 256, 289, 324, 361 . . . ?

• 382

• 395

• 412

• 400

What is the probability of rolling a prime number with a fair six-sided die?

• 1/3

• 2/3

• 1/2

• 1/6

57/67 will give the value:

• (6/5)⁷

• (5/6)⁷

• (5/6)⁰

• (6/5)⁶

The decimal expansion of 22/7  is

• Terminating

• Non-terminating and repeating

• Non-terminating and Non-repeating

• None of the above

The area of a circle is doubled if its radius is multiplied by what factor?

• π

• 2

• √2

• 4

The addition of a rational number and an irrational number is equal to:

• rational number

•  Irrational number

• Both

• None of the above

There is a three-digit number. The second digit is four times as big as the third digit, while the first digit is three less than the second digit. What is the number?

• 582

• 241

• 382

• 141