Question

If the sixth term of the parallel series and the 17th term are 19 and 41 respectively, find the 40th term.​

Answer 1

Answer:

a+5d= 19........i

a+16d=41........ii

from i and ii

11d =22

d=2

putting the value of d in i.

a+10=19

a=9

40th term = a+ (40 - 1) d

=9+39×2

=78+9

=87