DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 26

EASY

10th CBSE

IMPORTANT

Earn 100

If $n$ is any natural number, then which of the following expression ends with $0$ ?

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Important Questions on Real Numbers

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10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 27

If the least prime factor of

a

is

3

and least prime factor of

b

is

7

, the least prime factor of

(a + b)

is

EASY

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 28

If

a, b

are co-prime, then

a^{2}, b^{2}

are

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IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 29

Given that

HCF (2520, 6600) = 40

,

LCM (2520, 6600) = 252 \times k

then the value of

k

is

EASY

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 30

If the HCF of

65

and

117

is expressible in the form

65 m - 117

, then the value of

m

is

EASY

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 31

119^{2} - 111^{2}

is

EASY

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 32

According to Euclid's division algorithm HCF of any two positive integers $a$ and $b$ with $a > b$ is obtained by applying Euclid's division lemma to $a$ and $b$ to find $q$ and $r$ such that $a = b q + r$ where $r$ must satisfy

EASY

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 33

If H.C.F of

65

and

117

is expressible in the form of

65 m - 117

, then the value of

m

is:

EASY

10th CBSE

IMPORTANT

DINESH LAB MANUAL IN MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MCQs (MULTIPLE CHOICE QUESTIONS)>Q 34

The decimal expansion of

\frac{33}{2^{2} \times 5}

will terminate after