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10th CBSE
IMPORTANT
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If x is a positive rational number which is not a perfect square, then -5x is

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Important Questions on Real Numbers

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10th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class X>Chapter 1 - Real Numbers>Objective Questions>Q 24
A rational number pq, q≠0, p and q are co-prime, has a terminating decimal expansion if the prime factorisation of q is of the form (m, n are non-negative integers)
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10th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class X>Chapter 1 - Real Numbers>Objective Questions>Q 25
Which of the following numbers has a non-terminating repeating decimal expansion?
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10th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class X>Chapter 1 - Real Numbers>Objective Questions>Q 26
The decimal expansion of the rational number 1123×52 will terminate after:
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10th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class X>Chapter 1 - Real Numbers>Objective Questions>Q 27
The decimal expansion of 61250 will terminate after:
MEDIUM
10th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class X>Chapter 1 - Real Numbers>Objective Questions>Q 28
Show that the product of any three consecutive positive integers is divisible by 6
EASY
10th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class X>Chapter 1 - Real Numbers>Objective Questions>Q 29
Prove that one and only one of n, n+3, n+6 or n+9 is divisible by 4.
EASY
10th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class X>Chapter 1 - Real Numbers>Chapter Test>Q 1
Using Euclid's division algorithm, find the HCF of 3318 and 4661
EASY
10th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class X>Chapter 1 - Real Numbers>Chapter Test>Q 2
Show that product of any two consecutive positive integers is divisible by 2.