Question

10)Look at the number pattern given below.

1
2 3
4 5 6
7 8 9 10
________
__________
a)Write down the next two more lines of this pattern?

b)What is the last number in the 14th line?

c)What is the first number in the 15th line?

d)How many numbers are there in the 15th line? e)What is the last number in the 15th line?​

Answer 1

Answer:

11 12 13 14 15

16 17 18 19 20 21

Answer 2

Answer:

a) 11,12,13,14,15

16,17,18,19,20,21

b) 105

c) 106

d) 15

e) 120

Step-by-step explanation:

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