Question
The 5th and 8th term of an arithmetic progression are 13
and -5 respectively. What is the 15th term?Solution
Given: 5th term a5 = 13, 8th term a8 = −5.
Use the formula: The formula for the n-th term is: 
Solve the system of equations: Subtract the first equation from the second: 3d = −18 ⇒ d = − 6 Substitute d = − 6 into a1+ 4d = 13: 
Find the 15th term:
The 15th term is -47.
Which of the following best defines Tax buoyancy?
...
What is the percentage of protected workmen based on the total number of workmen employed in an establishment?
Which perspective recognizes the importance of the government in labour-management disputes?
Which indicator is commonly used to measure a country's economic growth?
Which ministry is responsible for implementing the Pradhan Mantri YUVA Yojana?
John Robinson has given the concept of
The recent fall in international crude oil price has the highest impact on which of the following indicators?
...
Under the provisions of the Industrial Disputes Act 1947, the employer of any industry declares lay-off, is required to provide alternate employment to ...
Which of the following option is incorrect about “Aatmanirbhar Bharat Rojgar Yojana”?
What does IBBI stands for?
Relevant for Exams:
