Question

find the 12th term and 24th term of the AP
9,13,17.........​

Answer 1

Answer:

12th term = 53

24th term = 109

Step-by-step explanation:

NOTE :

• Tn = a + ( n - 1 ) d
• a = 1st term = 9
• d = common difference = 2nd term - 1st term = 13 - 9 = 4
• n = no. of term

12th term ( n=12 )

Tn = a + ( n - 1 ) d

=> T12 = 9 + ( 12 - 1 ) 4

=> T12 = 9 + ( 11 ) 4

=> T12 = 9 + 44

=> T12 = 53

24th term ( n=24 )

Tn = a + ( n - 1 ) d

=> T24 = 9 + ( 24 - 1 ) 4

=> T24 = 9 + ( 25 ) 4

=> T24 = 9 + 100

=> T24 = 109