Question

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15​

Answer 1

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15=120

answer=120

Answer 2

Answer:

120

Step-by-step explanation:

1+2=3

3+3=6

6+4=10

10+5=15

15+6=21

21+7=28

28+8=36

36+9=45

45+10=55

55+11=66

66+12=78

78+13=91

91+14=105

105+15=120

HOPE IT WILL BE HELPFUL❤️❤️❤️