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If the first 3 terms of an AP are b,c,and 2b find the ratio of b and c

Posted by Kidu Mon 6 years ago

We know that, If the first three terms of an AP are p,q,r then

2q = p + r

According to question we have that b,c,2b are in AP

That means 2c = b + ab

⇒ 2c = 3b

⇒ b/c = 2/3

Therefore, the ratio of b and c is 2:3

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