Hi,

First define names to the ranges.

D2:D5=Rng1,
E5=Rng2 and
F4=Rng3
and the formula

=IF(SUM(COUNTIF(INDIRECT({"rng1","rng2","rng3"}),A 15))=1," ",ROW())

confirmed with Ctrl+Shift+Enter

HTH


--
Krishnakumar


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