Let a and b be two positive real numbers such that a\sqrta+b\sqrtb=32 and a\sqrtb+b\sqrta=31 What is the value of {5(a+b)}/7? [2019 CDS-II]

UPSC CDS 2 2019 Math Paper

Question : 86 of 100

Marks: +1, -0

Let a and b be two positive real numbers such that a√a+b√b=32 and a√b+b√a=31 What is the value of

5(a+b)

[2019 CDS-II]

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