Question 1
Answer
Question 1
1. Out of forty students, there are 14 who are taking Physics and 29 who are taking Calculus. What is the probability that a randomly chosen student from this group is taking only the Calculus class?
Answer
0.6 = 60%.
Question 2
Answer
Question 2
2. In town of 500 people, 285 read Hindu and 212 read Indian express and 127read Times of India 20 read Hindu and times of India and 29 read hindu and Indian express and 35 read times of India and Indian express. 50 read no news paper. Then how many read only one paper?
Answer
45
Question 3
Answer
Question 3
3. In a group of persons traveling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Gujarati. In that group, none can speak any other language. If 2 persons in the group can speak two languages and one person can speak all the three languages, then how many persons are there in the group?
A) 21
B) 23
C) 22
D) 24
Answer
B
Question 4
Answer
Question 4
4. Out of a total of 120 musicians in a club , 5% can play all the three instrumentsGuitar, violin and Flute. It so happens that the number of musicians who can play any two and only two of the above instruments is 30. The number of musicians who can play the guitar alone is 40. What is the total number of those who can play violin alone or flute alone?
A) 30
B) 38
C) 44
D) 45
Answer
C
Question 5
Answer
Question 5
5. In a town 65% people watched the news on television, 40% read a newspaper and 25% read a newspaper and watched the news on television also. What percent of the people neither watched the news on television nor read a news paper?
A) 5
B) 10
C) 15
D) 20
Answer
D
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Question 6
Answer
Question 6
6. A secret can be told only 2 persons in 5 minutes .the same person tells to 2 more persons and so on. How long will take to tell it to 768 persons?
a) 47.5 min
b) 50 min
c) 500 min
d) 49 min
Answer
a
Question 7
Answer
Question 7
7. When I was married 10 years ago my wife is the 6th member of the family. Today my father died and a baby born to me.The average age of my family during my marriage is same as today. What is the age of Father when he died?
Answer
70
Question 8
Answer
Question 8
8. A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn round and are able to pick the hat at the point from where they began boating after 5min. Tell the speed of river?
Answer
6 miles/hr
Question 9
Answer
Question 9
9. There are three departments having students 64,58,24 .In an exam they have to be seated in rooms such that each room has equal number of students and each room has students of one type only (No mixing of departments. Find the minimum number rooms required?
Answer
73
Question 10
Answer
Question 10
10. Argentina had football team of 22 player of which captain is from Brazilian team and goalki from European team. For remaining player they have picked 6 from Argentinean and 14 from European. Now for a team of 11 they must have goalki and captain so out of 9 now they plan to select 3 from Argentinean and 6 from European. Find out number of methods available for it.
Answer
160600 (check out for right no. 6C3 * 14C6)
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