we are in for a surprise again
A uses a faulty balance that has one arm 4% longer than other. What is the percentage of profit he can earn?
Explain
http://i.imgur.com/MyzMCTr.jpg
Can anyone explain the approach?
A survey was conducted in a community of 350 people regarding three games - Chess, Carroms
and Chinese Checkers. The following information is obtained in the survey.
(i) Thrice the number of people who play all the three games is equal to the number of people who play Chinese Checkers.
(ii) The number of people who play Chinese Checkers and Carroms is equal to the number of people who play Chess only.
(iii) For every three people who play Chess and Chinese Checkers only, there are five people who play none of the three games.
(iv) In every seven people who play Chinese Checkers, four people play Carroms also.
(v) For every six people who play only Carroms, there is one who plays Chinese Checkers only.
(vi) For every four people who play exactly two games, there is one who plays Carroms and Chinese Checkers only and two persons who play none of the three games.
1. How many people play exactly two games?
(A) 100 (B) 135 (C) 150 (D) 185
2. How many people play Chess but not Carroms?
(A) 60 (B) 80 (C) 90 (D) 125
3. How many people do not play Chinese Checkers?
(A) 255 (B) 205 (C) 235 (D) 245
4. How many people play Chess or Carroms?
(A) 275, (B) 285 (C) 295 (D) 335.
In Brindavan Colony, a survey was conducted among 300 people to find the readership of three newspapers -The Hindu, The Times of India and Indian Express. It is known
or The Times of India but not Indian Express.
1. How many people read at least one of the other two newspapers along with Indian press?
(A) 80 (B)90 (C) 100 (D) 110
2. How many people read all the three newspapers?
(A) 70 (B) 60 (C) 40 (D) Cannot be determined
3. How many people read The Hindu only?
(A) 50 (B) 60 (C) 70 (D) 80
In a colony of 500 people, each person likes at least one of coffee, tea, fruit juice and Badam milk. Also 230 like coffee, 210 like tea, 220 like fruit juice, 240 like Badam milk and 40 like all the four. The number of persons who like exactly one drink for each category is the same and is 60.The number of people who like exactly two of the four drinks for each possible pair is 30 except for only coffee and tea, only tea and fruit juice for which it is 20 each. 10 people like all the drinks except coffee.
1. How many people like exactly three out of the four drinks?
(A) 70 (B) 80 (C) 40 (D)60
2. How many people like both coffee and fruit juice?
(A) 90 (B) 80 (C) 120 (D) 100
3. How many people like at most two of the four drinks?
(A) 380 (B) 400 (C) 420 (D) 360
4. How many people like both fruit juice and Badam milk but not tea?
(A) 50 (B) 40 (C) 60 (D) 70
I bought a CD for Rs. 60. I sold it to my friend for Rs. 70. After I bought it back from him for Rs. 80. How much loss did i incur?
does anyone know how to find the no. of factors of n! ?
A die is rolled three times. What is the probability that the number that turns up in the second roll is more than that which turns up in the first roll and the number that turns up in the third roll is more than that which turns up in the second roll?
- 11 / 54
- 5/ 54
- 7 / 54
- 13 / 54
0 voters
A very basic question:
If it is given that A is 25% more efficient than B, and B completes a work in 20 hours, then how can we find the time of completion by A?
A group consists of m equally efficient workers. A piece of work was started by one of them. The pth worker ( 2
A)9 B)10 C)11 D)22
Explain the approach please..
Pipes A and B can fill a tank in 20 minutes and 30 minutes respectively. Pipe C can empty it in 15 minutes. A is opened for a minute and then closed. B is opened for a minute and then closed. C is opened for a minute and then closed. This process is repeated until the tank is full. Find the time taken to fill the tank.
A) 169 B)170 C)167 D)166
Please explain the approach. Because I am not getting the answer in the conventional approach.
How many distinct equilateral triangle can be formed in a regular nonagon having two of their vertices as the vertices of nonagon?
1-72
2-36
3-66
4-none of these
Explain your answers.
Companies x and y earned profits in 2005.Is the profit of x less than that of y in 2005?
1. The ratio of sales of x and y is 4:5
2. The ratio of expenditures of x and y is 3:4
mark 1: only 1 needed
mark 2: only 2 needed
mark 3: both needed
mark 4: cannot be answered using both 1 and 2
What do you mean by Angle of the parallelogram is Pi/4? Also are there any such similar angular measuring values?
A work is done by 30 workers not all of them have the same capacity to work. Every day exactly 2 workers, do the work with no pair of workers working together twice. Even after all possible pairs have worked once, all the workers together works for two more days to finish the work. Find the number of days in which all the workers together will finish the whole work?
#Approach/Explanation
Find the minimum number of terms for the sum to be negative for the given A.P.
40,37,34,31,28......
If X={5,9,13,17....201}. Y is the subset of X such that sum of no two elements equals 206. Find maximum number of elements in Y