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Answers by ANKUSH KUMAR

9 votes
1
Which one of the following Boolean expressions is NOT a tautology? $((a \rightarrow b) \wedge (b \rightarrow c)) \rightarrow (a \rightarrow c)$ $(a \leftrightarrow c) \rightarrow (\sim b\rightarrow (a\wedge c))$ $(a\wedge b \wedge c)\rightarrow (c \vee a)$ $a\rightarrow (b\rightarrow a)$
answered May 8, 2017 in Mathematical Logic 4k views
3 votes
2
#discrete 6 runners are in a 100 yard dash. Find the ways possible for 3 medals to be awarded if ties are possible.
answered May 5, 2017 in Mathematical Logic 181 views
1 vote
3
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} ?
answered Apr 28, 2017 in Combinatory 193 views
3 votes
4
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 609 views
4 votes
5
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 2k views
0 votes
6
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 Numerical Ability 208 views
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