[計量] 考古題p63第20題
20.A square board that has an area of 25 square inches is to be cut into
pieces.each of which is a square with sides of length 1,2 or 3 inches.what
is the least number of such square pieces into which the board can be cut?
(A)5
(B)6
(C)7
(D)8
(E)9
請各位幫忙,需要詳解!!謝謝,感恩
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