There are n urns and m balls. If we put 3 balls in each urn 3 balls will be excess. If we put 4 balls in each urn 1 urn will be excess. Find no. of Urns (or) Balls?

Find the area not occupied by circles: Given length =y breadth =x

A man gets x/y of Rs.10 and y/x of Rs.10. He returns Rs.20. The Answer choices are a) He may not lose b) He may lose c) He always loses d) Cannot be Determined

Three men A,B,C can complete a work separately in some specified days(may be6,7,8).If they do the work together by alternate days. Then how many days need to complete the work?

Four Members A,B,C,D are playing a game .A person losing a game should double the amount of others .B,C,D are losing in order after three games .The amount after 3 games are A&B having 40,D is having 16&C 80. Each questions carry one mark: a) who started with small amount of money? b) who started with greatest amount of money? c) what amount did B have?

There are some houses in a street back to back .And they that house behind 10 was 23. How many houses in the street?

There are 1997 doors in a auditorium and as many as people as the no of doors open enter the auditorium .A door was closed and as many as people as no of doors open leave the auditorium . the process was repeated till the no of doors is equal to1.find the total no of peoples enter the auditorium?

A batsman average was 15.at last innings he took 23 runs then his average became 16.how much run he should take to make his average 18?

Find the number WXYZ divisible by 36? i)let the digits be5,4,3,6 ?not in that order ii)sum of last two digits is 9 iii) sum of middle two digits is 7

X and Y live in a North-South parallel street. X travels 10 km towards North to reach the east-west street . Y travels 6 km towards south to reach the east ?west street . X travels now 4km towards east and y travels 8km towards west and they met each other. What is the distance between x and y?

The houses are numbered 1,2,3,? and reach the end of the street and backtracks toward s the starting point. The house numbered 10 is opposite to 23. there are even no of houses. Find the total no of houses.

A seller has a set of apples out of which he sells one half of it and half an apple to his first customer.then he sells half of the remaining apples and a half apple to his second customer.Then he sells half of the remaining apple and ? apple to his third customer and so on.This repeats upto 7th customer and no more apples are remaining . Find the total no of apples he had.

A hollow cube of size 5cm is taken , with the thickness of 1cm . it is made of smaller cubes of size 1cm . if the outer surface of the cube is painted how many faces of the smaller cubes remain unpainted?

if a 36 cm thread is used to wrap a book , lengthwise twice and breadthwise once, what is the size of the book?

if 4 circles of equal radius are drawn with vertices of a square as the centre , the side of the square being 7 cm, find the area of the circles outside the square?