Quiz

What is the result of 2 + 2 * 5 ** 2?

102

52

400

100

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What is the result of (2 + 2) * 5 ** 2?

102

52

400

100

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What is the result of 102 / 10?

10

2

10.2

2.0

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What is the result of 102 / 10.0?

10

2

10.2

2.0

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What is the result of 102 % 10?

10

2

10.2

2.0

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What is the result of 4.5.ceil?

4

5

4.0

5.0

Explanation

The ceil method rounds up to the nearest integer.

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What is the result of 4.5.floor?

4

5

4.0

5.0

Explanation

The floor method rounds down to the nearest integer.

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What is the result of 4.5.round?

4

5

4.0

5.0

Explanation

The round method rounds to the nearest integer and rounds up if the fractional part of the float is .5.

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What is the result of 4.5.to_i?

4

5

4.0

5.0

Explanation

The to_i method rounds down to the nearest integer.

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What is the result of 4.to_f?

4

5

4.0

5.0

Explanation

The to_f method type converts an integer to a float.

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What is the result of 5.to_s?

5

5.0

"5.0"

"5"

Explanation

The to_s method type converts an object to a string.

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What is the result of false.to_s?

0

true

"false"

false

Explanation

The to_s method type converts an object to a string, regardless of that object's data type.

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