In a maThematic there are 1,2,3,....9 cities  and each number corresponds to a city. Now an airflight route is to be established between two cities such that the numeral formed is divisible by 3. (eg. if 1 and 2 are connected then it satisfies the condition). Find out the number of cities which are connected to city 8, either directly or indirectly.

5 cities 

There are 100 bulbs and 100 switches.Each switch is numbered from 1 to 100 and each switch corresponds to each bulb. (a)all switches are switched on. (b)the switch nnumberes which are divisible by 2 are marked and those switches which are on are put off and which are off are put on. (c)the switch  numbers which are divisible by 3 are marked and those switches which are on are put off and which are off are put on. (d)this process continued till the number 100. By the end

10(1,4,9,16,25,36,49,64,81,100) 

There are five letters A,B,C,D,E .Each represents a different number. (a) product of AB and CD is EEE. (b) if AB is subtracted from the product E and CD then CC is result.Now what is the code which represents the product of AB and D.

Latest Answer : 1,1,1,1-> 10*9*8*7/4= 12601,1,2   -> 10*9*8/2   =3601,3      ->10*9      =902,2      ->10*9/2   =454         ...

The members of a certain tribe are divided into three castes Abhor, Dravid, and Magar castes.An Abhor woman cannot marry a dravid man.A magar man cannot marry a Dravid woman.A son takes the caste of his father, a daugher takes the caste of her moher.all marriages except those mentioned above are permitted.There are no children born out of wed lock. Questions:1) An abhor woman marries and has the children, all of whom are members of the abhor caste. Which of the folloing must be true?i)  

Both guptha and sinhas have two young sons whose ages are under eleven. the names of the boys, whose ages round off to the nearest year are all different, are rajesh , praveen, lalitm and pratap. Taking the ages of the boys only to the nearest year, the following statements are true.Rajesh is three years younger than his brother isPraveen is the oldest.Lalit is half as old as one of the gupta boys.Pratap is five years older than the younger sinha boy.The total ages of the boys in each family differ

Three friends divided some bullets equally. After all of them shot 4 bullets the total no. of remaining bullets is equal to that of one has after division. Find the original number divided.

x x x x-4 x-4 x-4 3x-12 = x x= 6 answer is 18  

A person went to a shop and asked for change for 1.15paise. but he said that he could not only give change for one rupee. but also for 50p,25p,10p and 5p. what were the coins he had

1-->50 4--->10p 1--->25p  

There are 5 persons a,b,c,d,e and each is wearing a block or white cap on his head. a person can see the caps of the remaining 4 but can t see his own cap. a person wearing white says true and who wears black says false. i) a says i see 3 whites and 1 block ii) b says i see 4 blocks iii) e says i see 4 whites iv) c says i see 3 blocks and 1 white. now find the caps worn by a,b,c,d and e

1/3 ed of the contents of a container evaporated on the 1st day. 3/4 th of the remaining contents of the container evaporated the second day. what part of the contents of the container are left at the end of the second day.