Question

AP=7,13,19,205 find the total number of terms in the AP.

Answer 1

Answer:

a=7

n=205

d=6

tn=a+(n-1)d

205=7+n(-1)×6

198=(n-1)×6

33=n-1

n=3=

ans=34

Answer 2

Step-by-step explanation:

AP = 7,13,19

a1=7

a2=13

d=13-7

=6

so, an=a+(n-1)d

205 =7+(n-1)6

205-7=(n-1)6

198/6=n-1

33+1=n

so,

n=34

hence, total number of terms are34.