Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 1

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10th CBSE

IMPORTANT

Earn 100

For some integer $m,$ , every even integer is of the form:

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Important Questions on Real Numbers

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10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 2

For some integer

q

, every odd integer is of the form:

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10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 3

n^{2} - 1

is divisible by

8,

if

n

is:

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10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 4

If the HCF of

65

and

117

is expressible in the form

65 m - 117

, then the value of

m

is:

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10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 5

The largest number which divides

70

and

125

leaving remainders

5

and

8,

respectively is:

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10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 6

If two positive integers

a

and

b

are written as

a = x^{3} y^{2}

and

b = x y^{3}; x, y

are prime numbers, then

HCF (a, b)

is:

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10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 7

If two positive integers

p

and

q

can be expressed as

p = a b^{2}

and

q = a^{3} b; a, b

being prime numbers, then

L C M (p, q)

is

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10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 8

The product of a non-zero rational and an irrational number is:

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10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>COMPETITION FILE>Q 9

The least number that is divisible by all the numbers from

1

to

10

(both inclusive) is: