Question

7. Find the 20th term from the last term of the AP:3,8,13,...,253.
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Answer 1

Answer:

a+(n-1)d

= 3+ 19d

= 3+ 19x5= 98

Step-by-step explanation:

Answer 2

Answer:

first term (a) = 3

common difference(d) = 8-3 = 5

20 th term of an AP = a+ 19d

= 3 + 19(5) = 3 + 95 = 98