Question

First term and common difference of an A.P. are 12 and 4
respectively. If tn = 96, find n.​

Answer 1

Step-by-step explanation:

96 = a+(n-1) d

96= 12+ (n-1)*4

96 -12=(n-1)4

84/4=n-1

n-1=21

n=21+1

n=22

Answer 2

Answer:

a=12

d=4

tn=96

tn=a+(n-1)d

96=12+(n-1)4

96-12=(n-1)4

84/4=(n-1)

21=(n-1)

21+1=n

n=22