Question

Three numbers LCM is 378 and HCF is 6.If two numbers of them are 18,42..third number is.. ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

$\underline { \bold{ \red{correct \: answer \: is}}}$

$\rightarrow{ \bold{3}}$

$\underline{ \bold{ \red{explaination}}}$

$\bullet \: { \bold{let \: the \: third \: number \: be \: x}}$

$\boxed{ \bold{lcm \times hcf = product \: of \: given \: numbers}}$

$\underline{ \bold{given \: numbers}}$

• 18
• 42

$\rightarrow{ \bold{378 \times 6 = 18 \times 42 \times x}}$

$\rightarrow{ \bold{ x = \frac{378 \times 6}{18 \times 42} }}$

$\rightarrow{ \bold{x = \frac{2268}{756}}}$

$\rightarrow{ \bold{x = 3}}$