Tiwari Academy Discussion

Ervar

Asked: March 14, 2021In: Class 8 Maths

If 24x is a multiple of 3, where x is a digit, what is the value of x? (Since 24x is a multiple of 3, its sum of digits 6 + x is a multiple of 3; so 6 + x is one of these numbers: 0, 3, 6, 9, 12, 15, 18 … But since x is a digit, it can only be that 6 + x = 6 or 9 or 12 or 15. Therefore, x = 0 or 3 or 6 or 9. Thus, x can have any of four different values).

NCERT Solutions for Class 8 Mathematics Chapter 16 Important NCERT Questions Playing with Numbers Chapter 8 Exercise 16.2 NCERT Books for Session 2022-2023 CBSE Board Questions No: 3

Ervar

Asked: March 14, 2021In: Class 8 Maths

If 31z5 is a multiple of 9, where z is a digit, what is the value of z? You will find that there are two answers for the last problem. Why is this so?

NCERT Solutions for Class 8 Mathematics Chapter 16 Important NCERT Questions Playing with Numbers Chapter 8 Exercise 16.2 NCERT Books for Session 2022-2023 CBSE Board Questions No: 2

Ervar

Asked: March 14, 2021In: Class 8 Maths

If 21y5 is a multiple of 9, where y is a digit, what is the value of y?

NCERT Solutions for Class 8 Mathematics Chapter 16 Important NCERT Questions Playing with Numbers Chapter 8 Exercise 16.2 NCERT Books for Session 2022-2023 CBSE Board Questions No: 1

Ervar

Asked: March 14, 2021In: Class 8 Maths

Find the values of the letters in the following and give reasons for the steps involved.

NCERT Solutions for Class 8 Mathematics Chapter 16 Important NCERT Questions Playing with Numbers Chapter 8 Exercise 16.1 NCERT Books for Session 2022-2023 CBSE Board Questions No: 10

Ishta

Asked: February 28, 2021In: Class 6 Maths

I am the smallest number, having four different prime factors. Can you find me?

NCERT Solutions for Class 6 Maths Chapter 3 Important NCERT Questions Playing With Numbers Chapter 3 Exercise 3.5 NCERT Books for Session 2022-2023 CBSE Board Questions No: 12

Ishta

Asked: February 28, 2021In: Class 6 Maths

18 is divisible by both 2 and 3. It is also divisible by 2 x 3 = 6. Similarly, a number is divisible by 4 and 6. Can we say that the number must be divisible by 4 x 6 = 24? If not, give an example to justify your answer.

NCERT Solutions for Class 6 Maths Chapter 3 Important NCERT Questions Playing With Numbers Chapter 3 Exercise 3.5 NCERT Books for Session 2022-2023 CBSE Board Questions No: 11

Ishta

Asked: February 28, 2021In: Class 6 Maths

Determine if 25110 is divisible by 45. [Hint: 5 and 9 are co-prime numbers. Test the divisibility of the number by 5 and 9.]

NCERT Solutions for Class 6 Maths Chapter 3 Important NCERT Questions Playing With Numbers Chapter 3 Exercise 3.5 NCERT Books for Session 2022-2023 CBSE Board Questions No: 10

Ishta

Asked: February 28, 2021In: Class 6 Maths

In which of the following expressions, prime factorization has been done: (a) 24 = 2 x 3 x 4 (b) 56 = 7 x 2 x 2 x 2 (c) 70 = 2 x 5 x 7 (d) 54 = 2 x 3 x 9

NCERT Solutions for Class 6 Maths Chapter 3 Important NCERT Questions Playing With Numbers Chapter 3 Exercise 3.5 NCERT Books for Session 2022-2023 CBSE Board Questions No: 9

Ishta

Asked: February 28, 2021In: Class 6 Maths

The sum of two consecutive odd numbers is always divisible by 4. Verify this statement with the help of some examples.

NCERT Solutions for Class 6 Maths Chapter 3 Important NCERT Questions Playing With Numbers Chapter 3 Exercise 3.5 NCERT Books for Session 2022-2023 CBSE Board Questions No: 8

Ishta

Asked: February 28, 2021In: Class 6 Maths

The product of three consecutive numbers is always divisible by 6. Verify this statement with the help of some examples.

NCERT Solutions for Class 6 Maths Chapter 3 Important NCERT Questions Playing With Numbers Chapter 3 Exercise 3.5 NCERT Books for Session 2022-2023 CBSE Board Questions No: 7

If 31z5 is a multiple of 9, where z is a digit, what is the value of z? You will find that there are two answers for the last problem. Why is this so?

If 21y5 is a multiple of 9, where y is a digit, what is the value of y?

Find the values of the letters in the following and give reasons for the steps involved.

I am the smallest number, having four different prime factors. Can you find me?

18 is divisible by both 2 and 3. It is also divisible by 2 x 3 = 6. Similarly, a number is divisible by 4 and 6. Can we say that the number must be divisible by 4 x 6 = 24? If not, give an example to justify your answer.

Determine if 25110 is divisible by 45. [Hint: 5 and 9 are co-prime numbers. Test the divisibility of the number by 5 and 9.]

In which of the following expressions, prime factorization has been done: (a) 24 = 2 x 3 x 4 (b) 56 = 7 x 2 x 2 x 2 (c) 70 = 2 x 5 x 7 (d) 54 = 2 x 3 x 9

The sum of two consecutive odd numbers is always divisible by 4. Verify this statement with the help of some examples.

The product of three consecutive numbers is always divisible by 6. Verify this statement with the help of some examples.

Which is the best website providing NCERT Solutions?

NCERT Books

Where can I get NCERT books in PDF format?

NIOS

NCERT Solutions

Sign Up

Sign In

Forgot Password

Tiwari Academy Discussion Latest Questions