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Ch-13 Revision Surface area and volumes ...

Ch-13 Revision Surface area and volumes | Term -2 Maths | CBSE class 10th | Revision series term-2

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A series has three numbers a, ar, and ar^2 . In the series, the first term is twice the second term. What is the ratio of the sum of the first two terms to the sum of the last two terms in the series?

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The ratio of the 11th term to the 18th term of an AP is 2 : 3 . Find the ratio of the 5th term to the 21st term and also the ratio of the sum of the first five terms to the sum of the first 21 terms.

Write down the series whose r^(th) term is 3. 2 ^(r + 1 ) . Is it a geometric series ?

The first term of a sequence is 1, the second is 2 and every term is the sum of the two preceding terms.The n^(th) term is.

The sum of the 2nd term and the 7th term of an A.P. is 30. If its 15th term is 1 less than twice of its 8th term, find the A.P.

The sum of first 6 terms of an arithmetic progression is 42. The ratio of its 10th term to its 30th term is 1:3 . Calculate the first and 13th term of an AP.

If the 2nd term of an AP is 13 and 5th term is 25, what is its 7th term ?

If the 2nd term of an AP is 13 and 5th term is 25, what is its 7th term ?

Class 10 Exercise 10.2 Question 1 | CBSE Class 10 Ex -10.2 Q1 | NCERT | Class 10 Maths Chapter 10