# Mathematics questions

This is a list of recently added questions about mathematics. Play mathematics quiz and see all the questions.## Which of the writers was a mathematician?

Lewis Carroll. Lewis Caroll, author of "Alice in Wonderland" completed his mathematical studies at Oxford University, was a lecturer at this University. He wrote about 250 scientific papers in mathematics, logic and cryptography. He was interested in mathematical puzzles and numerical games.

Created by: Kinga Fabijańska

very hard

37%

Rudyard Kipling

Rudyard Kipling

2520

Lewis Carroll

Lewis Carroll

4842

Karol Dickens

Karol Dickens

3843

John Ronald Reuel Tolkien

John Ronald Reuel Tolkien

1795

## Who introduced the Fibonacci numbers?

Leonardo of Pisa, also known as Leonardo Fibonacci, Leonardo Pisano Bigollo. His 1202 book Liber Abaci introduced the sequence to Western European mathematics,[6] although the sequence had been described earlier as Virahanka numbers in Indian mathematics.

Created by: Ola

very hard

37%

Edouard Lucas

Edouard Lucas

167

Cartesius

Cartesius

413

Gottfried Wilhelm Leibniz

Gottfried Wilhelm Leibniz

422

Leonardo of Pisa

Leonardo of Pisa

602

## Which numeral system was in use in ancient Sumer and Babilon?

Sexagesimal. Remnants of highly composite sexagesimal system are in use even today for measuring angles, geographic coordinates and especially time. An hour of time is divided into 60 minutes, which in turn are divided into 60 seconds.

Created by: smyru

very hard

31%

octal

octal

2738

binary

binary

2397

decimal

decimal

3004

sexagesimal

sexagesimal

3800

## Which of the following is true for the solution with the pH=0?

The OH − ion concentration is smaller than the H+ ion concentration. In chemistry, pH is a numeric scale used to specify the acidity or alkalinity of an aqueous solution. It is the negative of the logarithm to base 10 of the activity of the hydrogen ion .Traditionally the pH is being defined as: pH = - log10 [H+], where [H+] it is a H+ ions concentration in mol/dm^3 (M). So if pH = 0 this H+ ions concentration is 1 mol/dm^3 and the solution is strongly acidic.

Created by: Paweł Kołodziejczyk

very hard

25%

the OH − ion concentration is smaller than the H+ ion concentration

the OH − ion concentration is smaller than the H+ ion concentration

750

the OH − ion concentration is greater than the H+ ion concentration

the OH − ion concentration is greater than the H+ ion concentration

592

the OH − ion concentration is equal of the H+ ion concentration

the OH − ion concentration is equal of the H+ ion concentration

820

Such solution doesn't exist

Such solution doesn't exist

786

## How many degrees an obtuse angle can have ?

90-180. The obtuse angle may measure from 90 to 180 degrees. Angles having a degree of 0 to 90 are acute angles, whereas those from 180 to 360 - concave angles.

Created by: TotalBellend

easy

77%

0-360

0-360

352

90-180

90-180

8371

0-90

0-90

260

180-360

180-360

1788

## Which of the following numbers is the greatest?

1/3. Quite surprisingly, most players answer that both answers 1/3 and 33% are correct. But 1/3 is more than 33%. (it is 33.3333333...)

Created by: globalquiz.org

hard

53%

1/3

1/3

9670

0,3

0,3

746

33%

33%

1564

Both answers 1/3 and 33% are correct

Both answers 1/3 and 33% are correct

6157

## Which famous scientist was born on the Pi day? (March 14)

Albert Einstein. 14 of March is celebrated on many schools and universities as both Pi Day and the birthday of Albert Einstein. On of the traditions is the 'Pi Pie' (pictured).

Created by: globalquiz.org

hard

46%

Albert Einstein

Albert Einstein

5567

Blaise Pascal

Blaise Pascal

2170

Isaac Newton

Isaac Newton

2014

all of the above

all of the above

2101

## Which of the following is a prime number?

16769023. A prime number has no positive divisors other than 1 and itself. Hence, a prime bigger than 2 cannot be even. All prime numbers bigger than 5, written in the usual decimal system, end in 1, 3, 7, or 9.

Created by: Sumit Tamang

average

67%

23882990

23882990

1491

16769023

16769023

10997

38377296

38377296

1412

11723835

11723835

2485

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