MATHEMATICS CLASS X>Chapter 1 - Real Numbers>VERY SHORT ANSWER TYPE QUESTIONS (VSAQs)>Q 27

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10th CBSE

IMPORTANT

Earn 100

The product of two irrational numbers is an irrational number.

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Important Questions on Real Numbers

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 1 - Real Numbers>VERY SHORT ANSWER TYPE QUESTIONS (VSAQs)>Q 28

The sum of two irrational numbers is always an irrational number.

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 1 - Real Numbers>VERY SHORT ANSWER TYPE QUESTIONS (VSAQs)>Q 29

For what value of

n

,

2^{n} ✕ 5^{n}

ends in

5

.

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 1 - Real Numbers>VERY SHORT ANSWER TYPE QUESTIONS (VSAQs)>Q 30

If

a

and

b

are relatively prime numbers, then what is their

H C F

?

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 1 - Real Numbers>VERY SHORT ANSWER TYPE QUESTIONS (VSAQs)>Q 31

If

a

and

b

are relatively prime numbers, then what is their

L C M

?

EASY

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 1 - Real Numbers>VERY SHORT ANSWER TYPE QUESTIONS (VSAQs)>Q 32

Two numbers have

12

as their

HCF

and

350

as their

LCM

.

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 1

The exponent of

2

in the prime factorisation of

144

, is

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 2

The

LCM

of two numbers is

1200

. Which of the following cannot be their

HCF ?

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 1 - Real Numbers>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 3

If

n = 2^{3} \times 3^{4} \times 5^{4} \times 7

, then the number of consecutive zeros in

n

(where

n

is a natural number) is