Question

Find the 30th term of ap 10,7,4...​

Answer 1

Answer:

So, 30th term = t30=10+(30−1)(−3)⟹t30=10−87=−77

Step-by-step explanation:

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Answer 2

Answer:

-80

Step-by-step explanation:

It takes much time to solve it by subtracting 3 from it so there is a short trick to solve this type of questions.

Short trick-  subtracting or adding digit * the term you have to find. then subtract/add the digit you have got in the first given term.

                = 10-3*30

                =10-90=-80

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