Question

24) Find the numbers of term of an AP 7, 13, 19 ... 205.
​

Answer 1

Step-by-step explanation:

a=7

d=6

n=?

an=205

an=a+(n-1)d

205=7+(n-1)6

205=7+6n-6

205=1+6n

204=6n

204÷6=n

34=n

n=34 terms

Answer 2

Answer:

a= 7

d= 13-7=6

an=205

an=a+(n-1)d

205=7+(n-1)6

205=7+6n-6

205-1=6n

204/6=n

n=34