17. Find the 20th term from the last term of the AP:3.8.13....253.
18. The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and 10th terms is
44. Find the first three terms of the AP.
19.Subba Rao started work in 1995 at an annual salary of 5000 and received an increment
oft 200 each year. In which year did his income reach 70007
Ramkali saved * 5 in the first week of a year and then increased her weekly savings by
175. If in the nth week, her weekly savings become 20.75, find...
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the 20th term from the last is 158
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