Question

9. The LCM of 48 x^b y^a z^5 and 72 x^c y^b z^a is 144 x^4 y^6 z^6, then find the minimum value of a+b+c.
(1) 10
(2) 12
(3) 16
(4) 18

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Answer 1

2+£7+£5-;;£34688:"-;;8£:(:;