Tuổi của mẹ là:
(59 + 25) / 2= 42
Vậy mẹ sinh năm là:
2015 - 42= 1973
1973 là đúng 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
mk lam tren violympic rui
mẹ sinh năm :
(59+25):2-42=1973
đ/s:................
1934 ok 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%