Question

The product of two number is 480 and their LCM is 80. What is their HCF.?
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Answer 1

Answer:

$product \: of \: two \: numbers = hcf \times lcm \\ so \: 480 = 80 \times x \\ \frac{480}{80} = x \\ 6 = x$

So hcf is x

Answer 2

product of two number is =hcf×lcm

so 480=80 × X

480

80=x

6=x