Question

which term of the arithmetic progression 8,11,14,17 ------- is 758?​

Answer 1

Answer:

a = 8 , d = 11 - 8 = 3 , Tn = 758

• Nth Term of Arithmetic Progression :

⇢ Tn = a + (n - 1)d

⇢ 758 = 8 + (n - 1)3

⇢ 758 - 8 = (n - 1)3

⇢ 750 = (n - 1)3

⇢ 750/ 3 = (n - 1)

⇢ 150 = n - 1

⇢ 150 + 1 = n

⇢ n = 151

Hence, 758 is 151th term of above AP.