Secondary School (English Medium) (5 to 8) Class 8 - CBSE Question Bank Solutions

Identify the term, their coefficients for the following expression:

 x² + x + 1

Identify the term, their coefficients for the following expression:

 3x²y² − 5x²y²z² + z²

Identify the term, their coefficients for the following expression:

9 − ab + bc − ca

Identify the term, their coefficients for the following expression:

\[\frac{a}{2} + \frac{b}{2} - ab\]

Identify the term, their coefficients for the following expression:

0.2x − 0.3xy + 0.5y

Without performing actual computations, find the quotient when 94 − 49 is divided by
(i) 9
(ii) 5

If sum of the number 985 and two other numbers obtained by arranging the digits of 985 in cyclic order is divided by 111, 22 and 37 respectively. Find the quotient in each case.

If \[\overline{{3x2}}\] is a multiple of 11, where x is a digit, what is the value of x?

Given an example of a number which is divisible by 2 but not by 4.

Given an example of a number which is divisible by  3 but not by 6.

Given an example of a number which is divisible by 4 but not by 8.

Given an example of a number which is divisible by both 4 and 8 but not by 32.

Which of the following statement is true?
If a number is divisible by 4, it must be divisible by 8.

Which of the following statement is true?
If a number is divisible by 8, it must be divisible by 4.

Which of the following statement is true?
A number is divisible by 18, if it is divisible by both 3 and 6.

Which of the following statement is true?
If a number is divisible by both 9 and 10, it must be divisible by 90.

Which of the following statement is true?
If a number exactly divides the sum of two numbers, it must exactly divide the numbers separately.

Which of the following statement is true?
If a number divides three numbers exactly, it must divide their sum exactly.

Which of the following statement is true?
If two numbers are co-prime, at least one of them must be a prime number.