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Calculati: s=18x(6+7+8+......+55)+50:5=?




Răspuns :

s=18x(6+7+8+......+55)+50:5= 18x[(6+55)*50/2]+10 = 18*(61*50/2)+10 = 18*1525+10 = 18*1530+10=27540+10=17550