Operators In Ruby — Part 1 MCQs with Explanations

+ is the correct answer to “Which operator is used for addition in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

Addition is the correct answer to “What does the += operator do in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

** is the correct answer to “Which operator is used for exponentiation in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

% is the correct answer to “Which operator is used for modulo in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

9 is the correct answer to “What is the result of the expression: 3 ** 2 in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

FALSE is the correct answer to “What is the result of the expression: true && false in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

2 is the correct answer to “What is the result of the expression: 6 / 2 in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

- is the correct answer to “Which operator is used for subtraction in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

2.5 is the correct answer to “What is the result of the expression: 9 / 2 in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

27 is the correct answer to “What is the result of the expression: 3 ** 3 in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

TRUE is the correct answer to “What is the result of the expression: 4 > 2 && 5 < 7 in Ruby”. This question is standard in competitive examination syllabi for Operators In Ruby.

-50 -40 -30 -20 -10 is the correct answer to “What is the output of the given code? counter = -50 while counter <0 puts counter counter+=10 end”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “What will be the output of the given code? boolean_1 = 2**3 != 3**2 || true puts boolean_1”. This question is standard in competitive examination syllabi for Operators In Ruby.

All of the mentioned is the correct answer to “Which of the following is a valid boolean operator”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “Ruby does not support ++ operator, it only supports += operator.”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “Assignment operator is also known as relational operator.”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “The == 'is equal to' is known as relational operator.”. This question is standard in competitive examination syllabi for Operators In Ruby.

15 19 23 is the correct answer to “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”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “The '=' is used for assigning value to variable”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “The given two expression means the same. counter=counter+1 and counter++”. This question is standard in competitive examination syllabi for Operators In Ruby.

50 84 126 176 234 is the correct answer to “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”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “The boolean operator && only result in true when both the values are true”. This question is standard in competitive examination syllabi for Operators In Ruby.

False is the correct answer to “What will be the output of the given code? boolean_1 = !(700 / 10 == 70) puts boolean_1”. This question is standard in competitive examination syllabi for Operators In Ruby.

False is the correct answer to “What will be the output of the given code? boolean_1 = 77 < 78 && 77 < 77 puts boolean_1”. This question is standard in competitive examination syllabi for Operators In Ruby.

False is the correct answer to “What will be the output of the given code? boolean_2 = !true && (!true || 100 != 5**2) puts boolean_2”. This question is standard in competitive examination syllabi for Operators In Ruby.

False is the correct answer to “What will be the output of the given code? boolean_1 = !(3 < 4 || false) && (false || true) puts boolean_1”. This question is standard in competitive examination syllabi for Operators In Ruby.

All of the mentioned is the correct answer to “Which of the following are used for comparison”. This question is standard in competitive examination syllabi for Operators In Ruby.

22.5 11.5 is the correct answer to “What is the output of the given code? a = 22.5 while a >11.5 puts a a-=3.5 end”. This question is standard in competitive examination syllabi for Operators In Ruby.

100 20 4 is the correct answer to “What is the output of the given code? counter = 100 while counter > 0 puts counter counter/=5 end”. This question is standard in competitive examination syllabi for Operators In Ruby.

1..10 is the correct answer to “What is the output of the given code? counter = 1 while counter < 11 puts counter counter+=1 end”. This question is standard in competitive examination syllabi for Operators In Ruby.

a greater than b is the correct answer to “What is the output of the given code? a=10 b=9 if(a>b) print ("a greater than b") else print "Not greater" end”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “Boolean opeartors are also known as logical operators.”. This question is standard in competitive examination syllabi for Operators In Ruby.

All of the mentioned is the correct answer to “Which of the following is a valid assignment operator”. This question is standard in competitive examination syllabi for Operators In Ruby.

True is the correct answer to “What will the following expression evaluate to? true | | false”. This question is standard in competitive examination syllabi for Operators In Ruby.

False is the correct answer to “What will the following expression evaluate to? (true && false) | | (!true)”. This question is standard in competitive examination syllabi for Operators In Ruby.

Error is the correct answer to “What is the output of the given code? if(a==10 && b=9) print "true" else print "false" end”. This question is standard in competitive examination syllabi for Operators In Ruby.

True True True False is the correct answer to “What is the output of the given code? test_1 = 17 > 16 puts(test_1) test_2 = 21 <= 30 puts(test_2) test_3 = 9 >= 9 puts(test_3) test_4 = -11 > 4 puts(test_4)”. This question is standard in competitive examination syllabi for Operators In Ruby.

It is used as exponent like 2**3=8 is the correct answer to “What does the **= assignment operator do”. This question is standard in competitive examination syllabi for Operators In Ruby.

100 75 50 25 is the correct answer to “What is the output of the given code? counter = 100 while counter > 0 puts counter counter-=25 end”. This question is standard in competitive examination syllabi for Operators In Ruby.

True False is the correct answer to “What will be the output of the given code? boolean_1 = !true puts boolean_1 boolean_2 = !true && !true puts boolean_2”. This question is standard in competitive examination syllabi for Operators In Ruby.