Question

Add each of the following till you find the pattern and then complete without calculating
(a) 1+2+3+4+5=_______
2+3+4+5+6=_______
3+4+5+6+7=________
4+5+6+7+8=______
5+6+7+8+9=______
(b) 2+4=_____
2+4+6=_____
2+4+6+8=_____
2+4+6+8+10=_____
2+4+6+8+10+12=_____​

Answer 1

Answer:

(a) 15

19

25

30

35

(b)6

12

20

30

42