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Given that n AM’s are inserted between two sets of numbers a, 2b and 2a, b where suppose further that the nth mean between these sets of numbers is same then the ratio a:b=
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Correct option is B
1+2b−an+1n=2a+b−2an+1n⇒a=nbSimilar Questions
Between 1 and 31 are inserted M arithmetic means so that the ratio of the 7th and (M - 1) th means is 5:9, then the value of m is
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