Question

2) Which term of the A.P. 1,4,7,........ is 70 ?
(a) 24th (b) 22nd (c) 21st
(d) 23rd​

Answer 1

Answer:

the ans is 21st

Step-by-step explanation:

it is the answer hope you enjoyed

Answer 2

a = 1

d = 3

an = 70

an = a+(n-1)d

70 = 1+(n-1)3

70 = 1+3n-3

70 = -2+3n

70+2 = 3n

72 = 3n

72/3 = n

24 = n

70 is 24th term of the given AP.

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