Which of the following is true?

C. $\pi$ is an irrational number

B. $\sqrt{2}$ is a rational number

C. $\pi$ is an irrational number

Mathematics · Basic Arithmetic & Number Systems · page 7 of 24

Integers and Decimals MCQs with Answers

Includes 30 past paper MCQs (marked).

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61.
Solve: $840 + 14 + 40 = ?$
Correct Answer: B. $894$
One-liner
The sum of $840 + 14 + 40$ is $894$.
62.
The sum of two odd integers is _?
Correct Answer: B. An even integer
One-liner
The sum of two odd integers is always an even integer.
63.
The smallest seven-digit number is _?
Correct Answer: C. $1000000$
One-liner
The smallest seven-digit number is $1000000$ (one million).
64.
Evaluate: $2 - 2 + |-2| + |2| = \text{?}$
Correct Answer: C. $4$
One-liner
The expression simplifies to $4$ because $|-2| = 2$, $|2| = 2$, and $2 - 2 + 2 + 2 = 4$.
65.
Which of the following is true?
Correct Answer: C. $\pi$ is an irrational number
One-liner
Among the given statements, only $\pi$ is an irrational number is true.
66.
Past Paper MCQ
A boy saved $4.56 the first month, $3.82 the second month, and $5.06 the third month. How much did he save altogether?
Correct Answer: D. $13.44
One-liner
The total savings over three months is $13.44.
67.
Those numbers which are divisible by $2$ are called?
Correct Answer: C. Even numbers
One-liner
Numbers divisible by $2$ are called even numbers.
68.
When you divide $0.7$ by $10$, you will get?
Correct Answer: A. $0.07$
One-liner
Dividing $0.7$ by $10$ shifts the decimal point one place to the left, giving $0.07$.
69.
What is the value of $12 \div 3$?
Correct Answer: B. $4$
One-liner
The value of $12 \div 3$ is $4$.
70.
The difference between $+16$ and $+28$ is _.
Correct Answer: B. $-12$
One-liner
The difference between $+16$ and $+28$ is $-12$.