Answer of part 1 questions, 10th standard maths

Arithematic sequence

1) a) 10th term=111

b) 1111 is not a term of this sequence

2) a) 6Th term=16

b) d=2

c) sequence=6,8,10,12.....

3) a) 4n+2

b)Sn=2(n×n) + 4n

c) no: of terms=15

4) a) 1,6,11

b) 510 is not a term of the sequence

5) a) sum of first 10 terms= 200

b) sum of terms from 2nd term to 11th term =240

c) 500 can't be a term of this sequence

6) a) 7,10,13,16...

d=3

b) 21st term=67

7) a) 8,13,18,23,28.....

b) 5n+3

8) a) -2,1,4,7....

b) no:of terms =20

9) a) difference between the first terms=8

b ) difference between the terms of first 20 terms=160

10) a) 1st term=5

d=6

b)6n-1

c) 3(n×n) + 20

The explained answers will be published on the same site in the coming days

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