Progression (Sequence and Series)Hard
Question
Four fair dice D1, D2, D3 and D4, each having six faces numbered 1, 2, 3, 4, 5, and 6, are rolledsimultaneously. The probability that D4 shows a number appearing on one of D1, D2 and D3 is
Options
A.
B.
C.
D.
More Progression (Sequence and Series) Questions
If the sum of the first n natural numbers is 1/5 times the sum of the their squares, then the value of n is -...The sum of infinite series 1− + ... is-...If x = where a, b, c are in A.P. and |a|...Let $a_{1},\frac{a_{2}}{2},\frac{a_{3}}{2^{2}},\ldots,\frac{a_{10}}{2^{9}}$ be a G.P. of common ratio $\frac{1}{\sqrt{2}...If S denotes the sum to infinity and Sn the sum of n terms of the series 1+ + ...., such that S − Sn .< , then ...