Category: Questions

Discuss the various reasons for environmental crisis

Question Discuss the various reasons for environmental crisis Chapter Environment and Sustainable Development Class Class 12 Subject Economics (Indian Economic Development) Category Indian Economic Development

February 15, 2022 No Comments

There is a circular path around a sports field. Sonia takes 18 minutes to drive one round of the field, while Ravi takes 12 minutes for the same. Suppose they both start at the same point and at the same time and go in the same direction. After how many minutes will they meet again at the starting point?

Question – There is a circular path around a sports field. Sonia takes 18 minutes to drive one round of the field, while Ravi takes

February 11, 2022 No Comments

Explain why 7 × 11 × 13 + 13 and 7 × 6 × 5 × 4 × 3 × 2 × 1+5 are composite numbers.

Board CBSE Textbook NCERT Class Class 10 Subject Maths Chapter Chapter 1 Real Numbers Question – Explain why 7 × 11 × 13 + 13

February 11, 2022 No Comments

Check whether 6n can end with the digit 0 for any natural number n.

Question Check whether 6n can end with the digit 0 for any natural number n. Board CBSE Textbook NCERT Class Class 10 Subject Maths Chapter

February 11, 2022 No Comments

Given that HCF (306, 657) = 9, find LCM (306, 657).

Question Given that HCF (306, 657) = 9, find LCM (306, 657). Board CBSE Textbook NCERT Class Class 10 Subject Maths Chapter Chapter 1 Real

February 11, 2022 No Comments

Find the LCM and HCF of the following integers by prime factorization method: (i) 12, 15 and 21 (ii) 17, 23, 29 (iii) 8, 9, 25

Question Find the LCM and HCF of the following integers by prime factorization method Board CBSE Textbook NCERT Class Class 10 Subject Maths Chapter Chapter

February 11, 2022 No Comments

Find the LCM and HCF of the following pairs of integers and verify that LCM × HCF = product of two numbers. (i) 26 and 91 (ii) 510 and 92 (iii) 336 and 54

Question Find the LCM and HCF of the following pairs of integers and verify that LCM × HCF = product of two numbers. Board CBSE

February 11, 2022 No Comments

Express each number as a product of its prime factors (i) 140 (ii) 156 (iii) 3825 (iv) 5005 (v) 7429

Question Express each number as a product of its prime factors (i) 140 (ii) 156 (iii) 3825 (iv) 5005 (v) 7429 Board CBSE Textbook NCERT Class

February 11, 2022 No Comments

Using divisibility tests determine which of the following numbers are divisible by 4; by 8:

Board CBSE Textbook NCERT Class Class 6 Subject Maths Chapter Chapter 3 Playing with Numbers Question – Using divisibility tests, determine which of the following

February 10, 2022 No Comments

Using divisibility tests, determine which of the following numbers are divisible by 2; by 3; by 4; by 5; by 6; by 8; by 9; by 10; by 11 (say, yes or no):

Board CBSE Textbook NCERT Class Class 6 Subject Maths Chapter Chapter 3 Playing with Numbers Question – Using divisibility tests, determine which of the following

February 10, 2022 No Comments

Use Euclid division lemma to show that the cube of any positive integer is of the form 9m, 9m + 1, or 9m + 8

Question Use Euclid division lemma to show that the cube of any positive integer is of the form 9m, 9m + 1, or 9m +

February 10, 2022 No Comments

Use Euclid’s division lemma two show that the square of any positive integer is either of the forms or for some integer

Question Use Euclid’s division lemma two show that the square of any positive integer is either of the forms or for some integer Board CBSE

February 10, 2022 No Comments