Question

If the HCF and LCM of 5x and 8x are 9 and
360 respectively, find value of x.
A. 5 B. 7 C. 9 D. H

Answer 1

lcm × hcf = product of the two numbers.

here lcm=360

hcf=9.

=> 9×360=5x × 8x

3240=40x

x=3240÷40

×=81

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Answer 2

answer is

x = 9

Lcm of 45 and 72 is 360

Hcf of 45 and 72 is 9

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