Question

1. If 2a + 3b - c = 0 and a - 2b + 2c = 0, then :
(a) a : b: c = 4: 7:5
(b) a : b:c = 5:7: 4
(c) a : b: c= -4: 5:7
(d) a : b: c= -4: 5: -7
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Answer 1

I THINK ANSWER IS

A)a : b : c =4 :7 : 5

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