Home › CAT › Quantitative Aptitude › Progressions › The sum of the first 22 terms of the list 8, 3, …
The sum of the first 22 terms of the list 8, 3, minus 2 is:
APlus 979
BMinus 1079
CMinus 979
DMinus 879
Answer & Solution
Correct answer: C. Minus 979
1. The first term is 8 and the difference is minus 5.
2. Apply the sum formula for 22 terms.
3. The sum is minus 979.
_Source: NCERT Class 10 Mathematics, Chapter 5, Arithmetic Progressions._
Related questions
A well costs 150 rupees for the first metre and rises by 50 for each further metre. The coThe middle term b of such a triple is called the:If a, b and c are in a progression, then b equals:The sum of the first 1000 positive integers is:If the last term of a finite progression is l, the sum of all its terms is n by 2 times:The sum of the first n terms of a progression can be written as n by 2 times:Gauss found the sum of the whole numbers from 1 to 100 to be:When the common difference is zero, as in 2, 2, 2, 2, the list is: