two friends A,B are running up hill and then to get down! length if road is 440 yards A on his return journy met B goin up at 20 yards from top,A has finished the rase .5 Minuit earlier than B,then how much time A had taken to complete the rase.

Only boys aged 16 wear coats. Boys aged 15 go to watch football.some more statements are given. What can be said about those who are watching football ? (age and costume).

a vendor solds two things at same cost 12 RS with one item at 25%profit and other at 20%loss,by this transaction he made profit or loss by how much

There are two balls touching each other circumferentially. The radius of the big ball is 4 times the diameter of the small ball.The outer small ball rotates in anticlockwise direction circumferentially over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. what is 'N' for the horizontal line from the centre of small wheel always is horizontal.

There are 4 married couples out of which 3 a group is needed . But thier should not be his of her spouse .How many groups are possible ?

there is a safe with a 5 digit No. The 4th digit is 4 greater than second digit, while 3rd digit is 3 less than 2nd digit. The 1st digit is thrice the last digit. There are 3 pairs whose sum is 11. Find the number.

If 1/4 of the time from midnight plus 1/2 of the time from now to midnight is the present time,then what is the present time ?

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.

be * be = acb a,b,c,e are non zero numbers find b,e.

there were three suspects for a robbery that happend in a bank, tommy, joy and bruceEach of them were saying that I haven't done anything and the other two has done it.police found that tommy was lying .who is the thief.

Olympic race : 4 contestants : Alan,charlie, Darren ,Brain. There are two races and average is taken to decide the winner.one person comes at the same position in both the race. Charlie always come before darren. Brian comes first once. Alan comes third at least once. Find the positions. Alan never comes last. Charlie & darren comes 2nd at least once.

write a five digit number , which will be having two prime numbers, and some two more conditions,like 1st digit greater than 2nd etc its easy(remember one is not a prime number,most people don mistake taking 1 as prime number)

In a 10 digit number, if the 1st digit number is the number of ones,2nd digit number is the number of twos, and ... so on. 10th digit is the number of zeroes,then find the number

There are 3 societies A,B,C having some tractors each. A Gives B and C as many tractors as they already have. After some days B gives A and C as many tractors as they have. After some days C gives A and B as many tractors as they have. Finally each has 24 tractors.what is the original No.of tractors each had in the beginning?

in a railway station, there are tow trains going. One in the harbour line and one in the main line, each having a frequency of 10 minutes. the main line service starts at 5 o'clock. the harbour line starts at 5.02a.m. a man goes to the station every day to catch the first train. what is the probability of man catching the first train