Question
Let three numbers $a, b, c$ between 2 and 18 be such that (i) their sum is 25 , (ii) the number $2, a, b$ are inA.P. and (iii) the numbers $b, c, 18$ are in G.P. then $c-9$ is
Step 1
P), we can write this as: \[a = 2 + (b - 2) = b\] And the numbers $b, c, 18$ are in geometric progression (G.P), we can write this as: \[c^2 = b \cdot 18\] Show more…
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