Question

a, b, c are in continued proportion, if a= 8 & c = 18, then find b.​

Answer 1

Answer:

by formula ,2b=a+c

2b=18+8

2b=26

b=13

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Answer 2

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$a = 8 \\ b = {?} \\ c = 18 \\ a \times c = {b}^{2} \\ 8 \times 18 = {b }^{2} \\ 144 = {b}^{2} \\ b = 12$