# Numbers questions

This is a list of recently added questions about numbers. Play numbers quiz and see all the questions.## Which of the following currencies was decimalised last?

Pound sterling. On 15 February 1971, the UK decimalised the pound sterling, replacing the shilling and penny with a single subdivision, the new penny. Under the old currency, the pound was made up of 240 pence, with 12 pence in a shilling and 20 shillings in a pound.

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very hard

34%

Polish zloty

Polish zloty

1240

Austro-Hungarian gulden

Austro-Hungarian gulden

1098

Russian ruble

Russian ruble

1192

pound sterling

pound sterling

1842

## What number is considered unlucky in Italy?

17. In Italian culture, the number 17 is considered unlucky. When viewed as the Roman numeral, XVII, it is then changed anagrammatically to VIXI, which in the Latin language translates to "I lived", the perfect implying "My life is over."

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very hard

28%

17

17

178

13

13

105

15

15

82

7

7

251

## What is the approximate value of the golden ratio ("phi")?

1.61. In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. It is often used for aesthetics in art and design.

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47%

3.14

3.14

1179

2.16

2.16

1617

1.61

1.61

3013

0.87

0.87

514

## Which of these countries is the most populous?

Egypt. With over 95 million inhabitants, Egypt is the third-most populous country in Africa (after Nigeria and Ethiopia). Italy has around 60 million inhabitants, France 67 and Turkey 79.

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hard

42%

Italy

Italy

76

France

France

216

Turkey

Turkey

348

Egypt

Egypt

469

## What is the distance between Earth and the Moon?

About 384 000 km. The average distance between Earth and the Moon is 384,000 km. So the light overcomes it in just over a second.

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hard

55%

about 38 000 km

about 38 000 km

324

about 384 000 km

about 384 000 km

1201

about 3 840 000 km

about 3 840 000 km

409

about 384 000 000 km

about 384 000 000 km

243

## A given natural number is divisible by 4 if and only if ...?

The number created from the last two digits is divisible by 4. The last two digits form a number that is divisible by 4; 40,832: 32 is divisible by 4. If the tens digit is even, the ones digit must be 0, 4, or 8. If the tens digit is odd, the ones digit must be 2 or 6. 40,832: 3 is odd, and the last digit is 2. Twice the tens digit, plus the ones digit is divisible by 4.

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very hard

28%

the last digit is divisible by 4

the last digit is divisible by 4

111

the last two digits are divisible by 4

the last two digits are divisible by 4

228

the sum of the last two digits is divisible by 4

the sum of the last two digits is divisible by 4

166

the number created from the last two digits is divisible by 4

the number created from the last two digits is divisible by 4

200

## In what period of time does the Sun make a full turn around the center of the Milky Way?

Within every 225 million years. The sun performs a full turn around the center of our galaxy during 225 million years.

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27%

within every 225 million years

within every 225 million years

207

within 250 million years

within 250 million years

249

within 300 million years

within 300 million years

181

within 350 million years

within 350 million years

129

## What number is the pattern for the construction of Dante Alighieri's song "Divine Comedy"?

3. The Divine Comedy is composed of 14,233 lines that are divided into three canticas – Inferno (Hell), Purgatorio (Purgatory), and Paradiso (Paradise) – each consisting of 33 cantos . The number "three" is prominent in the work, represented in part by the number of canticas and their lengths. Additionally, the verse scheme used, terza rima, is hendecasyllabic with the lines composing tercets according to the rhyme scheme aba, bcb, cdc, ded,

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24%

9

9

565

3

3

465

7

7

801

5

5

105

## In which year did Leonhard Euler introduced the symbol "i" to represent the square root of -1 ?

In 1777. The letter "i" as a designation of the element from -1 was proposed by Leonhard Euler in 1777. Later, from 1801, this designation was popularized by Carl Friedrich Gauss. Currently, it is the most commonly used symbol of the imaginary unit.

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43%

in 1555

in 1555

193

in 1666

in 1666

585

in 1777

in 1777

1039

in 1888

in 1888

593

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