Ruby Programming · all questions

Operators in Ruby
practice.

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Q21

What is the result of the expression: !(true && false) in Ruby?

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Q22

What is the output of the given code?

counter = -50
while counter <0
  puts counter
  counter+=10
  end

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Q23

What will be the output of the given code?

 boolean_1 = 2**3 != 3**2 || true
puts boolean_1

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Q24

Which of the following is a valid boolean operator?

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Q25

Ruby does not support ++ operator, it only supports += operator.

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Q26

Assignment operator is also known as relational operator.

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Q27

The == 'is equal to' is known as relational operator.

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Q28

What is the output of the given code?

a = 5
b=10
while a <10 && b<20
  puts a+b
  a+=2
  b+=2
  end

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Q29

What is the output of the given code?

 a = 5
b=10
while a <10 || b<20
  puts a*b
  a+=2
  b+=2
  end

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Q30

The '=' is used for assigning value to variable?

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Q31

The given two expression means the same.

counter=counter+1 and counter++

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Q32

What is the output of the given code?

 a = 5
b=10
while (a <10 || b<20)&&true
  puts a*b
  a+=2
  b+=2
  end

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Q33

The boolean operator && only result in true when both the values are true?

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Q34

What will be the output of the given code?

 boolean_1 = !(700 / 10 == 70)
puts boolean_1

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Q35

What will be the output of the given code?

boolean_1 = 77 < 78 && 77 < 77
puts boolean_1

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Q36

What will be the output of the given code?

 boolean_2 = !true && (!true || 100 != 5**2)
puts boolean_2

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Q37

What will be the output of the given code?

 boolean_1 = !(3 < 4 || false) && (false || true)
puts boolean_1

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Q38

Which of the following are used for comparison?

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Q39

What is the output of the given code?

a = 22.5
while a >11.5
  puts a
  a-=3.5
  end

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Q40

What is the output of the given code?

counter = 100
while counter > 0
  puts counter
  counter/=5
  end

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