Question

1)The 4th term from the end of the Ap :- 11,-8,-5..49
a) 37 (b) 40 (C) 43 (d) 58

2) Two Aps have same common difference. The first term of one of these is - 1 and that of the other is - 8. Then the difference between their 4th term is
a) - 1 (b) - 8 (C) 7 (d) - 9

3) If (P-1),(P+3),(3P-1) are in Ap the P is equal to
a) 4 (b) - 4 (c) 2 (d)-2

4) The 21st term of the Ap whose first two terms are - 3 and 4 is
a) 17 (b) 137 (C) 143 (d) - 143


5)If the sum of n terms of an Ap is
$2n {}^{2} + 5n$
Then it's nth term is
a) 4n-3 (b) 3n-4 (C) 4n+3 (d) 3n+4


6) If 18,a, b, - 3 are in Ap then a+b is equal to
a) 19 (b) 7 (c) 11 (d) 15


7) If the sum of P terms of an Ap is q and the q terms is p then the sum of p+q terms
a) 0 (b) p-q (C) p+q (d) - (p+q)


8) The first 4terms of an Ap, whose first term is - 2 and the common difference is - 2 are
a) - 2,0,2,3
b) - 2,4,-8,16
C)-2,-4,-6,-8
d)-2,-4,-8,-16

This is 10th class maths arithmetic progressions please help me friends. I will mark them as Brainlist who gives me all the correct options


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Answer 1

Answer:

1. (b)

2.(c)

3.(a)

4.(b)

5.(c)

6.(d)

7.(d)

8.(c)