رد: يلا نزآآآكـــر الإحصآإء سسوآإآإ ..
If tha letters A.B.C.D.E .F are to be used in a letter code consists of six digits. How many different codes are possible if the first letter must be A and repetitions are not permitte
ايش الارثام اللي احطها ؟؟ جربت 10 * 9* 8*7*6
ومازبط والحل = 120
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