Question

26. Which term of the A.P. 3, 10, 17, ... will be 84 more than its 13th term? ​

Answer 1

Answer:

25th term

Step-by-step explanation:

a = 3

d = 7 ,

13th term will be ,

xa13 = a + 12d

a13 = 3 + 12×7

a13 = 3+ 84 = 87

Since , 84 more than its 13th term ,so ,

value of term will be = 87 + 84 = 171

So value of term is 171

Now using ,

an = a+(n-1)d

171 = 3 + 7n - 7

171 + 4 = 7n

175/7 = n

n = 25 ,

So 25th term will be 84 more than its 13th term ,

Verification :-

a25 = a + 24 d

a25 = 3 + 24×7

a25 = 3 + 168 = 171

Hope it helps

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Answer 2

Answer:

whaa

whaa

aaahahaStep-by-step explanation: