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Euclid's Division Algorithm

If HCF of 1...

Question

If HCF of $(10, x) = 5$ and LCM of $(10, x) = 30$ , then $x$ is

15

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30

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21

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25

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Solution

The correct option is A $15$
$L C M \times H C F =$ Product of numbers
$30 \times 5 = 10 \times x$
$150 = 10 x$
$x = \frac{150}{10} = 15$
Therefore, $A$ is the correct answer.

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Similar questions

H C F

L C M

(x - 5)

x^{3} - 19 x - 30

D_{30}

30, x, y ϵ D_{30}

x + y = L C M (x, y), x \cdot y = G C D (x, y), x^{'} = \frac{30}{x}

f (x, y, z) = (x + y) \cdot (y^{'} + z)

f (2, 5, 15)

Interval	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$
$x$	$2$	$1$	$4$	$6$	$5$

x + 5 = 10

8 x - 30

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