Question

which term of Ap : 3,8, 13 ,18 ••• is 78?


a ) 8th term
b ) 7th term
c ) 15th term
d) 16 th term ​

Answer 1

Answer:

d) 16 th term

Step-by-step explanation:

78=a+(n-1) d

78=3+(n-1)5

75/5=n-1

15+1=n

n=16