Question

If LCM (a, 4a) is 52, then HCF (a, 4a) is ......
The options are...
a. 13
b. 26
c. 39
d. 52

please give me the correct answers.
I will be very much thankful for the answer.
I need the answer very urgent...

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Answer 1

$\frac{52 \times x}{a \times 4a} = 1$

$13 \times x = {a}^{2}$

$therefore \: to \: make \: it \: a \: perfect \: square \: x = 13$

a.) 13

HCF : 13

LCM : 52

NO. S : 13,52

Hope it Helps

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