Progression (Sequence and Series)Easy
Question
If 4th term of an AP is 64 and its 54th term is − 61, then its common difference is −
Options
A.5/2
B.−5/2
C.3 / 50
D.− 3 / 50
More Progression (Sequence and Series) Questions
Let the sum of the first $n$ terms of an A.P. be $3n^{2} + 5n$. Then the sum of squares of the first 10 terms of the A.P...Which of the following is not a measure of dispersion?...Let $\displaystyle\sum_{k=1}^{n} a_k = \alpha n^2 + \beta n$. If $a_{10} = 59$ and $a_6 = 7a_1$, then $\alpha + \beta$ i...If a,b,c are in A.P., then are in-...If three geometric means be inserted between 2 and 32, then the third geometric mean will be-...