As it is even length cycle(if not odd) then it can be colored by 2 colors only.
3 Nov 2018 - 10:47pm
b)
27 Sep 2018 - 6:59pm
b
14 Sep 2018 - 5:43pm
a
14 Sep 2018 - 5:39pm
b
14 Sep 2018 - 5:34pm
b)
5 Sep 2018 - 6:47pm
D) There are total 13 2-digit numbers which are divisible by 7.(14,21,28,35,42,56,63,70,77,84,91,98)
P(Selected no. divisible by 7)= 13/90
P(not selected)= 1- 13/90= 77/90
3 Sep 2018 - 9:22pm
14
1 Sep 2018 - 5:23pm
Gate officials never release anything as such officially. Every year weightage keeps changing unexpectedly, so it's unreliable. It's better to complete each and every topic with the same amount of dedication rather than focusing on the weightage cause you never know from which topic they will ask. For more reference to the question pattern, keep solving previous years questions. These "PREVIOUS YEARS QUESTIONS" works like wonders and an aspirant should solve it multiple times to be more acquired with gate pattern.

Most importantly, to get dream scores, don't neglect any topic just because they were asked less, you never know.

1 Sep 2018 - 8:08am

Ans is 34. as said in ques, "all the digits should be less than 500" so numbers can be 3-digit, 2-digit, and 1-digit.

At first, 3-digit can be arranged in 18 ways; 3*3*2

2-digit; 4*3=12 ways

1-digit; 4 ways

Therefore,  18+12+4= 34 ways.

 

 

29 Aug 2018 - 10:38pm

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