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Qn #759
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If a, b, c, d are in HP and arithmetic mean of ab, bc, cd is 9 then which of the following number is the value of ad?
A.
3
B.
9
C.
12
D.
4
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❓ Question: If a, b, c, d are in HP and arithmetic mean of ab,... | TANCET Group Studies | Tancet Group Studies