Asked by Kirandoon | 22nd Dec, 2008, 08:04: PM

Expert Answer:

In the chapter sequences and series, you might get questions related to the following topics:

-Arithmetic Progression (A.P.)

-Geometric Progression (G. P.)

-Relationship Between Arithmetic Mean and Geometric Mean.

-Sum to n Terms of Special Series

Some of the important types of questions are:


Q1. If a2, b2, c2 are in A.P. show that 1/b+c, 1/c+a, 1/a+b are in A.P.

Q2. A sum of Rs. 5250 is paid off in 20 instalments such that each instalment is Rs 7 more than preceding instalment. Calculate the value of the first instalment.

Q3. Sum the given series to n terms: 0.3 + 0.33 +0.333+........

Q4. The sum of two numbers is 6 times their geometric means, show that numbers are in the ratio

3+22 : 3-22

Questions like the above questions are very important. You should practice ample number of questions of these types and many more.



Answered by  | 23rd Dec, 2008, 11:18: AM

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