Related Questions

The sum of 3rd and 15th elements of an arithmetic progression is equal to the sum of 6th, 11th and 13th elements of the same progression. Then which element of the series should necessarily be equal to zero ?
The 3rd and 6th term of an arithmetic progression are 19 and 37 respectively. What is the 13th term?
If the 3rd and the 5th term of an arithmetic progression are 13 and 21, what is the 13th term?
The sum of fourth and twelfth term of an arithmetic progression is 20. What is the sum of the first fifteen terms of that arithmetic progression?
In 2011, the arithmetic mean of the annual incomes of Ramesh and Suresh was Rs. 3800. The arithmetic mean of the annual incomes of Suresh and Pratap was Rs. 4800, and the arithmetic mean of the annual incomes of Pratap and Ramesh was Rs. 5800. What is the arithmetic mean of the incomes of the three?
The sum of the fourth and twelfth term of an arithmetic progression is 20. what is the sum of the first 15 terms of the artihmetic progression?
The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?
If the 1st and the 3rd term of an arithmetic progression are -10 and -4, what is the 12th term?
The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?
What is the sum of the first 12 terms of an arithmetic progression if the 3rd term is -13 and the 6thterm is -4?