Question #2f059

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Answer 1 · 2018-02-13T01:54:49

He is thinking of the number #25#.

Think about the first couple of squares. It should be in here as #20# to #30# is not high.

#1^2=1#

#2^2=4#

#3^2=9#

#4^2=16#

#5^2=25#

#25# is #5^2# and also fits in between #20# and #30#.

#25# is the answer. Have a nice day!