Question

Which term of the AP:4,7,10.............is 64

Answer 1

Answer:

we know that for an AP an= a+(n-1)d

so,

a=4

an=64

d=7-4=3

n=?

64=4+(n-1)3

64=4+3n-3

64=1+3n

63/3=n

n=21

so, the 21st term of the AP is 64

Step-by-step explanation:

hopefully it helps.