Question

Q. Match the following: (Que No. 23 &24)
23. Section A
I 11th term of an A.P. -10,-7.5, -5,...
II 10th term of an A.P. 2, 7, 12,....
Section B
A. 60
B. 15
C. 47​

Answer 1

Answer:

q.23

(i)a =-10

d = -7.5+10 = 2.5

a 11 = (-10) + (11-1)(2.5)

(-10)+10(2.5)

(-10)+25

a11 = 15

(ii) a=2 d = 7-2 = 5

a10 = 2+(10-1)5

2+45 = 47