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

EASY

10th CBSE

IMPORTANT

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If $HCF (a, b) = 1,$ then $a$ and $b$ are said to be relatively prime.

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Important Questions on Real Numbers

MEDIUM

10th CBSE

IMPORTANT

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

If

p

is a prime, then

\sqrt{p + 1}

is always an irrational number.

EASY

10th CBSE

IMPORTANT

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

LCM of two prime numbers is

1

.

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 11

Product of HCF and LCM of three numbers is equal to their product.

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 12

\frac{7293}{2^{5} \times 5^{3} \times 3 \times 11}

has a non-terminating decimal expansion.

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 13

Every odd integer is of the form

2 m

, where

m

is an integer.

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 14

Every even integer is of the form

2 m,

where

m

is an integer.

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 1 - Real Numbers>FOR ASSESSMENT>Q 15

HCF of two numbers is always a factor of their LCM.

EASY

10th CBSE

IMPORTANT

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

If a number can't be expressed in the form

\frac{a}{b}

where

a

and

b

are integers and

b \neq 0

, then it is known as _____ number.