Question

) Find the 24th term of the A.P. 12, 16, 20, 24,​

Answer 1

Answer:

t1 = a = 12, t2= 16, t3= 20, t4=24

for finding d

t2-t1= 16-12 = 4

t3-t2=20-16 =4

common difference is 4

for finding 24th term

tn = a + (n-1) d

t24 = 12 + (24-1) 4

= 12 + 23×4

= 12 + 92

t24 = 104

Answer 2

Answer:

FORMULA :

an=a+(n-1)×d

were ;

(first term) a= 12

(common difference) d= a2-a1=16-12=4

n= 24

(Last term ) an= ?

Apply ;

an=a+(n-1)d

an=12+(24-1)×4

= 12+23×4

an =104

THERFORE THE 24TH TERM OF A.P IS 104 .