EASY
10th CBSE
IMPORTANT
Earn 100

The least number that is divisible by all the numbers from 1 to 10 (both inclusive).

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Important Questions on Real Numbers

MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS MATHEMATICS>Chapter 1 - Real Numbers>Exercise>Q 10
The decimal expansion of the rational number 145871250 will terminate after
MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS MATHEMATICS>Chapter 1 - Real Numbers>Exercise>Q 1
Write whether every positive integer can be of the form 4q + 2, where q is an integer. Justify your answer.
EASY
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS MATHEMATICS>Chapter 1 - Real Numbers>Exercise>Q 2
The product of two consecutive positive integers is divisible by 2.
EASY
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS MATHEMATICS>Chapter 1 - Real Numbers>Exercise>Q 3
'The product of three consecutive positive integers is divisible by 6'.
HARD
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS MATHEMATICS>Chapter 1 - Real Numbers>Exercise>Q 4
Write whether the square of any positive integer can be of the form 3m+2, where m is a natural number. Justify your answer.
HARD
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS MATHEMATICS>Chapter 1 - Real Numbers>Exercise>Q 5
A positive integer is of the form 3q+1, q being a natural number. Can you write its square in any form other than 3m+1, i.e., 3m or 3m+2 for some integer m? Justify your answer.
MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS MATHEMATICS>Chapter 1 - Real Numbers>Exercise>Q 6
The number 525 and 3000 are both divisible only by 3, 5, 15, 25 and 75. What is HCF525,3000?Justify your answer.
EASY
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS MATHEMATICS>Chapter 1 - Real Numbers>Exercise>Q 7

Explain why 3×5×7+7 is a composite number.