Question

1. The 11th term of the A.P.,: -5,
-5/2,0,5/2,.... is
is:
(a) – 20
(b) 20
(c)-30
(d) 30​

Answer 1

Answer:

a is -5

d is 5/2

a11=-5+(11-1)x5/2

=20

b)

Answer 2

Answer:

a= -5

d= 5/2

n= 11

an = a+(n-1)d

an = -5+(11-1)5/2

an = -5+25

an = 20

Answer is option b..

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