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Q.

The LCM of two numbers is 1920 and their HCF is 16. If one of the number is 128. Find the other number

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a

204

b

240

c

260

d

320

answer is B.

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Detailed Solution

text LCM end text cross times text HCF end text equals text Product of two numbers end text

$\begin{array}{l} 1920 \times 16 = 128 \times x \\ \frac{1920 \times 16}{128} = x \\ x = 240 \end{array}$

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