The numbers \( a, b, c \) and \( A, B, C \) are in \( A P \). The common difference of the secon....

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The numbers \( a, b, c \) and \( A, B, C \) are in \( A P \). The common difference of the second set is one more than
\( \mathrm{P} \)
the common difference of the first.
W.
If \( a+b+c=A+B+C=15 \) and \( \frac{a b c}{A B C}=\frac{7}{8} \) then
(1) \( a=7, A=6 \)
(2) \( B=b=5 \)
(3) \( a=5, A=6 \)
(4) \( a=6, A=5 \)
(It is given that the two sets of numbers are in the descending order.)



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