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Recent activity by ANKUSH KUMAR

3 answers
Let $S = \sum_{i=3}^{100} i \log_{2} i$, and $T = \int_{2}^{100} x \log_{2}x dx$. Which of the following statements is true? $S > T$ $S = T$ $S < T$ and $2S > T$ $2S ≤ T$
commented Nov 29, 2017 in Calculus 3.3k views
0 answers
A queue is implemented using two stack A and B. Consider the following code void enqueue(int value) { While (! Empty()) A.push(B.Pop()); A. push (value); } int dequeue () { While (! Empty()) {X} return B.Pop(); } if enqueue is implemented using two stacks A & B With operation ... )); B) B.Push(A.Pop()); C) A.Pop(B. Push ()); D) B.Pop(A. Push ()); what is difference between option b,d???
commented Oct 2, 2017 in DS 329 views
4 answers
A $1\;\text{Mbps}$ satellite link connects two ground stations. The altitude of the satellite is $36,504\;\text{km}$ and speed of the signal is $3 \times 10^{8}\;\text{m/s}.$ What should be the packet size for a channel utilization of $25\%$ for a satellite link ... and that there are no errors during communication. $120\;\text{bytes}$ $60\;\text{bytes}$ $240\;\text{bytes}$ $90\;\text{bytes}$
commented Jul 18, 2017 in Computer Networks 14.3k views
4 answers
A weight-balanced tree is a binary tree in which for each node, the number of nodes in the left sub tree is at least half and at most twice the number of nodes in the right sub tree. The maximum possible height (number of nodes on the path from the root to the furthest leaf) of such a tree ... described by which of the following? $\log_2 n$ $\log_{\frac{4}{3}} n$ $\log_3 n$ $\log_{\frac{3}{2}} n$
comment reshown Jul 3, 2017 in DS 14.6k views
9 answers
Which one of the following Boolean expressions is NOT a tautology? $((a \rightarrow b) \wedge (b \rightarrow c)) \rightarrow (a \rightarrow c)$ $(a \leftrightarrow c) \rightarrow (\sim b\rightarrow (a\wedge c))$ $(a\wedge b \wedge c)\rightarrow (c \vee a)$ $a\rightarrow (b\rightarrow a)$
answer edited May 8, 2017 in Mathematical Logic 4.5k views
1 answer
#discrete 6 runners are in a 100 yard dash. Find the ways possible for 3 medals to be awarded if ties are possible.
comment edited May 6, 2017 in Mathematical Logic 215 views
1 answer
Number of 5 digit number having there digits in non decreasing order (from left to right) constructed by using the digits belonging to the set {1, 2, 3, 4, 5, 6, 7, 8, 9} ?
commented Apr 29, 2017 in Combinatory 220 views
2 answers
A bagel shop has onion bagels, poppy seed bagels, egg bagels, salty bagels, pumpernickel bagels, sesame seed bagels, raisin bagels, and plain bagels. How many ways are there to choose a dozen bagels with at least three egg bagels and no more than two salty bagels?
answered Apr 21, 2017 in Combinatory 723 views
5 answers
How many solutions are there to the equation x1 + x2 + x3 + x4 + x5 = 21, where xi , i = 1, 2, 3, 4, 5, is a nonnegative integer such that: 0$\leq$ x1$\leq$10 ?
answered Apr 19, 2017 in Combinatory 2.6k views
3 answers
I tried solving it by enumerating all the paths and got ans 12.Can anyone provide some formula for this ?
answered Apr 15, 2017 in Quantitative Aptitude 234 views
1 answer
If Relation S is Transitive then what can we say about Transitivity of Sn ?
commented Apr 13, 2017 in Set Theory & Algebra 103 views