Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 5

EASY

10th CBSE

IMPORTANT

Earn 100

If $a$ and $b$ are two prime numbers then find LCM $(a, b)$

Important Questions on Real Numbers

EASY

10th CBSE

IMPORTANT

Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 6

If the product of two numbers is

1050

and their HCF is

25

, find their LCM.

EASY

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IMPORTANT

Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 7

What is a composite number?

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IMPORTANT

Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 8

If

a

and

b

are relatively prime number then what is their HCF?

EASY

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IMPORTANT

Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 9

If the rational number

\frac{a}{b}

has a terminating decimal expansion, what is the condition to be satisfied by

b

?

EASY

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IMPORTANT

Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 10

Simplify

\frac{2 \sqrt{45} + 3 \sqrt{20}}{2 \sqrt{5}}

EASY

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IMPORTANT

Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 11

Write the decimal expansion of

\frac{73}{(2^{4} \times 5^{3})}

.

EASY

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IMPORTANT

Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 12

Show that there is no value of

n

for which

(2^{n} \times 5^{n})

ends in

5

.

EASY

10th CBSE

IMPORTANT

Secondary School Mathematics for Class 10>Chapter 1 - Real Numbers>Exercise 1E>Q 13

Is it possible to have two numbers whose HCF is

25

and LCM is

520

?