Question

2 + 4+ 6 + 8 + 10 + ..... + 100

Answer 1

10 +92 = 102
8 + 94 = 102
6 + 96 = 102
4 + 98 = 102
2 + 100 = 102
dalam bilangan terdapat 2 loncatan yg berarti 100 : 2 = 50 pasang bilangan 50 * 102 = 5100 : 2 pasang = 2.550
* artinya kali