**1. The value of the expressions 4/(3*(2-1)) and 4/3*(2-1) is the same.**

a) True

b) False

Check Answer

Answer: a

Although the presence of parenthesis does affect the order of precedence, in the case shown above, it is not making a difference. The result of both of these expressions is 1.333333333. Hence the statement is true.

**2. What will be the value of the following Python expression?**

**4 + 3 % 5**

a) 4

b) 7

c) 2

d) 0

Check Answer

Answer: b

The order of precedence is: %, +. Hence the expression above, on simplification results in 4 + 3 = 7. Hence the result is 7.

**3. Evaluate the expression given below if A = 16 and B = 15.**

**A % B // A**

a) 0.0

b) 0

c) 1.0

d) 1

Check Answer

Answer: b

The above expression is evaluated as: 16%15//16, which is equal to 1//16, which results in 0.

**4. Which of the following operators has its associativity from right to left?**

a) +

b) //

c) %

d) **

Check Answer

Answer: d

All of the operators shown above have associativity from left to right, except exponentiation operator (**) which has its associativity from right to left.

**5. What will be the value of x in the following Python expression?**

**x = int(43.55+2/2)**

a) 43

b) 44

c) 22

d) 23

Check Answer

Answer: b

The expression shown above is an example of explicit conversion. It is evaluated as int(43.55+1) = int(44.55) = 44. Hence the result of this expression is 44.

**6. What is the value of the following expression?**

**2+4.00, 2**4.0**

a) (6.0, 16.0)

b) (6.00, 16.00)

c) (6, 16)

d) (6.00, 16.0)

Check Answer

Answer: a

The result of the expression shown above is (6.0, 16.0). This is because the result is automatically rounded off to one decimal place.

**7. Which of the following is the truncation division operator?**

a) /

b) %

c) //

d) |

Check Answer

Answer: c

// is the operator for truncation division. It is called so because it returns only the integer part of the quotient, truncating the decimal part. For example: 20//3 = 6.

**8. What are the values of the following Python expressions?**

**2**(3**2)**

**(2**3)**2**

**2**3**2**

a) 64, 512, 64

b) 64, 64, 64

c) 512, 512, 512

d) 512, 64, 512

Check Answer

Answer: d

Expression 1 is evaluated as: 2**9, which is equal to 512. Expression 2 is evaluated as 8**2, which is equal to 64. The last expression is evaluated as 2**(3**2). This is because the associativity of ** operator is from right to left. Hence the result of the third expression is 512.

**9. What is the value of the following expression?**

**8/4/2, 8/(4/2)**

a) (1.0, 4.0)

b) (1.0, 1.0)

c) (4.0. 1.0)

d) (4.0, 4.0)

Check Answer

Answer: a

The above expressions are evaluated as: 2/2, 8/2, which is equal to (1.0, 4.0).

**10. What is the value of the following expression?**

**float(22//3+3/3)**

a) 8

b) 8.0

c) 8.3

d) 8.33

Check Answer

Answer: b

The expression shown above is evaluated as: float( 7+1) = float(8) = 8.0. Hence the result of this expression is 8.0.

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