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) 

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         ...

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 ship went on a voyage after 180 miles a plane started with 10 times speed that of the ship. Find the distance when they meet from starting point.

180 + (x/10) = x x = 20 answer is 180+20=200miles.  

There are 3 societies a, b, and c. A lent tractors to B and C as many as they had. After some time B gave as many tractors to A and C as many as they have. After sometime c did the same thing. At the end of this transaction each one of them had 24. Find the tractors each originally had.

A had 39, B had 21, C had 12,  

There N stations on a railroad. After adding x stations 46 additional tickets have to be printed. Find N and X.

let N(N-1) = t; (N+x)(N+x-1) = t+46; trail and error method x=2 and N=11  

b=1 e=9  

Latest Answer : hai friends we can also have another answer for that 11*11=121    here b=1 ,e=1 and acb=121  here also both ways b=1 so can we take both the answers that is  b==1,1e=1,9 that is 11*11=121and also 19*19=361 ...

A,b,c,d,e are having numerical values. there are some conditions given a) a=c <===> b!=e b) difference between a and c as same as difference between c and b as same as difference between a and d c) cd then find a,b,c,d,and e

There are 3 nurses and they work altogether only once in a week. no nurse is called to work for 3 consecutive days. nurse 1 is off on tueseday, thursday and Sunday. nurse 2 is off on Saturday. nurse 3 is off on Thursday, Sunday. no two nurses are off more than once a week. find the day on which all the 3 nurses were on work.