Răspuns :
30 ori 2 =60 (biscuiti prima zi )
30 ori 3= 90 (biscuiti a doua )
30 PLUS 90 PLUS 17 = 167 ( biscuiti in total )
30 ori 3= 90 (biscuiti a doua )
30 PLUS 90 PLUS 17 = 167 ( biscuiti in total )