Ques:- In a group of 15,7 have studied Latin, 8 have studied Greek, and 3 have not studied either.How many of these studied both Latin and Greek
Recent Answer : Added by Admin On 2022-09-29 16:16:30:
Given:
In a group of 15 students,
7 have studied Latin,
8 have studied Greek,
3 have not studied either.
To find:
The number of students who studied both Latin and Greek.
Solution:
In a group of 15 students, have studied Latin, 8 have studied Greek, 3 have not studied either.
Therefore,
n(A∪B) = 15 – 3
n(A∪B) = 12
7 have studied Latin,
n(A) = 7
8 have studied Greek,
n(B) = 8
n(A∩B) is the number of students who studied both Latin and Greek.
n(A∩B) = n(A) + n(B) – n(A∪B)
n(A∩B) = 7 + 8 – 12
n(A∩B) = 15 – 12
n(A∩B) = 3
The number of students who studied both Latin and Greek is 3
Final answer:
3 of them studied both Latin and Greek.
Thus, the correct answer .3
Ques:- Are you a leader?
Ques:- A power unit is there by the bank of the river of 900 mtrwidth. a cable is made from power unit to power a plantopposite to that of the river and 3000 mtr away from thepower unit. The cost of the cable bellows water Rs5 / mtrand cost of cable on the bank is Rs 4/ mtr. Find the totalof laying the cable.
Recent Answer : Added by Ramya s On 2021-03-24 18:26:16:
2100
Ques:- The average weight of 25 persons sitting in a boat had some value. A new person added to them whose weight was 46 kg only. Due to his arrival, the average weight of all the persons decreased by 5 kg. Find the average weight of first 25 persons?
Recent Answer : Added by Admin On 2022-09-29 15:59:24:
let the average of 25 person be x
total age of a person=average×no.of person
total age of 25 person=X×25
=25X
when a new person of 46kg come average decrease by 5kg(X-5)
Total age of 26 person =25x+46
Average age of 26 person=X-5
A/Q
.25X+46=26(X-5)
25X+46=26X-130
26X-25X=130+46
X =176
hence the av. of 25 person be 176kg
Ques:- Describe your involvement in re engineering down-sizing or cost containment processes?
Ques:- Tell the difference between the largest number and the least number written with the digits 7, 3, 1, 4?
Recent Answer : Added by Nomula soumit sai kumar On 2022-10-21 19:49:16:
6084
7431 is largest number and 1347 is the least number from digits 1,3,4,7
so 7431-1347=6084
Ques:- If 2x y = 10 and x = 3, what is x – y
Ques:- In a certain company, 20% of the men and 40% of the women attended the annual company picnic. If 35% of all the employees are man, what percent of all the employees went to the picnic?
Recent Answer : Added by Admin On 2020-05-17 12:00:16:
Answer is 33%
{35 % of all the employees are men.
so 65 % (100-35) of all the employees are women.
35*20%=7% of the men attended the annual company picnic and
65*40%=26% of the women attended the annual company picnic.
so 33%(7+26) of all the employeeswent to the picnic.}
Ques:- The petrol tank of an automobile can hold g liters.If a liters was removed when the tank was full, what part of the full tank was removed?(a)g-a(b)g/a(c) a/g(d) (g-a)/a(e) (g-a)/g
Recent Answer : Added by Adithyan M On 2021-09-14 15:41:53:
a/g
Ques:- About experience, qualification,why this company, about company, test leadership quality, expectations.
Ques:- Your favourite area of interest
Ques:- 28% of 450 + 45% of 280 = ?
Recent Answer : Added by Talib Mansuri On 2022-05-17 08:54:05:
252
Ques:- Tell about urself and about the resume etc
Ques:- Pattern for telling about yourself for freshers?
Ques:- A certain sum becomes four times itself at simple interest in eight years. In how many years does it become ten times itself?
Ques:- It was Sunday on Jan 1, 2006. What was the day of the week Jan 1, 2010
Recent Answer : Added by soni On 2022-10-21 19:49:19:
it was a friday.
Ques:- What are workload managers for?
Ques:- Find out the wrong number in a given series.
2, 3, 6, 15, 52.5, 157.5, 630
A. 6
B. 15
C. 52.5
D. 157.5
Recent Answer : Added by mujahid ali On 2022-03-09 16:34:56:
52.5
Ques:- Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is:
Ques:- Six points are marked on a straight line and five points are marked on another line which is parallel to the first line. How many straight lines, including the first two, can be formed with these points?
Recent Answer : Added by Shashank Chauhan On 2021-09-14 15:41:44:
30+2=32
Ques:- A sum of money is put out at compound interest for 2 years at 20%. It would fetch Rs.482 more if the interest were payable half-yearly, then it were pay able yearly. Find the sum.
Ques:- Family and other people
Ques:- Which one of the following is known as the Coffee port ofthe world?
A. Sao Paulo
B. Buenos Aires
C. Rio de Janeiro
D. Santos
Ques:- A square Island surrounded by bigger square, and in between there is infinite depth water. The distance between them is L. The wooden blocks of L are given.The L length block can't be placed in between to cross it, as it will fall in water (just fitting).How would you cross using these L length blocks.
Ques:- Do you have plans for continued study?
Ques:- P, Q and R invests Rs.2000, Rs.3000 and Rs.4000 in a business. After one year P removed his money; Q and R continued the business for one more year. If the net profit after 2 years be Rs.3200, then P’s share in the profit is?
Recent Answer : Added by Admin On 2022-09-28 19:14:13:
Complete step-by-step answer:
Investment made by A for 1 year, IA=2000
Investment made by B for 2 year,
IB=2×3000IB=6000
Investment made by C for 2 year,
IC=2×4000IC=8000
The ratio of their investment is given by
IA:IB:IC=2000:6000:8000
To simplify the ratio divide it by 1000,
IA:IB:IC=2:6:8
Now again to simplify divide the ratio by 2,
IA:IB:IC=1:3:4
The total parts of this investment =1+3+4=8
A’s share in the investment is 1 out of the 8 parts; B’s share is 3 out of 8 while C’s share is 4.
Therefore, the profit share of A’s investment of Rs. 2000=18×3200=400.
Ques:- Two people X & Y walk on the wall of a godown in opposite direction. They meet at a point on one side and then go ahead. X after walking for some time, walks in opposite direction for 15 mtrs.Then again he turns back and walks in the original direction. What distance did Y walk before they met again, if X walks 11 mtrs by the time Y walks
Recent Answer : Added by Admin On 2020-05-17 11:59:43:
i Guess 8 mtrs.
Ques:- A car is filled with 4.5 gallons of fuel for a round trip . Car is taken 1/4 more than in going than coming up. What is the fuel consumed in coming up ?
Recent Answer : Added by Admin On 2020-05-17 12:00:30:
Fuel to go = x + (x/4)=5x/4
Fuel to come = x
now,
x+(5x/4) = 4.5
9x/4 = 4.5
9x = 18
x = 2 (Fuel to comeup)
Fuel to go will be:
2+(2/4) = 2 + (0.5) = 2.5
Ques:- What do you feel has been your greatest work-related accomplishment?
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Given:
In a group of 15 students,
7 have studied Latin,
8 have studied Greek,
3 have not studied either.
To find:
The number of students who studied both Latin and Greek.
Solution:
In a group of 15 students, have studied Latin, 8 have studied Greek, 3 have not studied either.
Therefore,
n(A∪B) = 15 – 3
n(A∪B) = 12
7 have studied Latin,
n(A) = 7
8 have studied Greek,
n(B) = 8
n(A∩B) is the number of students who studied both Latin and Greek.
n(A∩B) = n(A) + n(B) – n(A∪B)
n(A∩B) = 7 + 8 – 12
n(A∩B) = 15 – 12
n(A∩B) = 3
The number of students who studied both Latin and Greek is 3
Final answer:
3 of them studied both Latin and Greek.
Thus, the correct answer .3