Practice Page 1

Q1. How many terms of the series 54, 51, 48 ….. be taken so that their sum is 513? Explain the double answer.

 

 

 

 

 

 

 

 

 

 

Q2. Find the sum of first 30 terms of an A.P., in which 3rd term is 7 and 7th term is three more than twice of its 3rd term.

 

 

 

 

 

 

 

 

 

Practice Page 2

Q1.Find the sum of all even integers between 2 and 100 divisible by 6.

 

 

 

 

 

 

 

 

 

 

Q2. Find the sum of first 15 terms of an A.P. whose second term is 2 and seventh term is 22.

 

 

 

 

 

 

 

 

 

Practice Page 3

Q1. Find the sum of all three digit natural numbers, which are divisible by 5.

 

 

 

 

 

 

 

 

 

 

Q2. How many terms of the AP : 9, 17, 25, 33 . . . must be taken to give a sum of 636?

 

 

 

 

 

 

 

 

 


Last modified: Friday, 23 November 2018, 11:36 PM