Ques:- There are 6 couples (12 people). 4 people are selected at random. What is the probability that exactly one couple will be selected ?
Recent Answer : Added by An On 2022-09-15 16:37:14:
Prob(choosing two people who are a couple from 6 couples) = 1/6
We have 5 couple left (10 people)
Prob(choosing a person A from 10 people) = 1/10
Prob(choosing 1 person who is not a couple of A) = 1/8
Prob(choosing 4 people that has exactly one couple) = 1/6*1/8*1/10 = 0.0021
Ques:- There are 4 identical tabulates 2 for fever and 2 for cough,you have to take 1 tabulate of fever and 1 tabulate ofcough, if you consume 2 same type of tabulates you will die.then how to consume tabulates???
Recent Answer : Added by Sindhu On 2021-08-18 16:21:10:
we need to take half tabulate among the 4 tablets. den it ll be like 1 tabulate is of fever and one tabulate is of cough
Ques:- When Arthur is as old as his father Hailey is now, he shall be 5 times as old as his son Clarke is now. By then, Clarke will be 8 times older than Arthur is now. The combined ages of Hailey and Arthur are 100 years. How old is Clarke?
Recent Answer : Added by Stephanie Brewer On 2022-01-08 16:07:12:
Clarke is 80 years old
Ques:- The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number?
Recent Answer : Added by Priya On 2022-05-17 09:06:45:
270
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Ques:- Radius of sphere is increased by 50%. By how much percentage is surface area is increased?
Recent Answer : Added by Admin On 2020-05-17 11:59:36:
let original radius=100
original surface area lets say it x =4 * (22/7) * 100 *100
new radius=100 + 50% of 100=150
new surface area lets say it y = 4 * (22/7)* 150* 150
increase in surface area=((y-x)/x) * 100
i.e.
((4*(22/7)*150*150 – 4*(22/7)*100 *100) / (4*(22/7)*100*100))*100
=125
so the answer is 125%.
hope this helps you.
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Ques:- Given a triangle ABC, how would you use only a compass and straight edge to find a point P such that triangles ABP, ACP and BCP have equal perimeters? (Assume that ABC is constructed so that a solution does exist.)
Recent Answer : Added by Admin On 2020-05-17 12:01:52:
The answer probably lies in finding the in-centre of the
traingle. Bisect all the angles of the triangles and the
point where these angle bisectors meet gives u the point P
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Recent Answer : Added by SARAVANAN E On 2021-06-11 05:14:16:
Because he is very short for his height he can press upto 18th floor button only
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Recent Answer : Added by Kabir Sani On 2022-03-09 16:30:49:
4:2
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Recent Answer : Added by Vandan Atha On 2021-10-07 15:41:14:
72
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Recent Answer : Added by Anusha.B On 2021-12-14 17:33:19:
When I went to my native place the form is so good environment
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Recent Answer : Added by Durgadevi A On 2022-09-18 08:59:14:
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Prob(choosing two people who are a couple from 6 couples) = 1/6
We have 5 couple left (10 people)
Prob(choosing a person A from 10 people) = 1/10
Prob(choosing 1 person who is not a couple of A) = 1/8
Prob(choosing 4 people that has exactly one couple) = 1/6*1/8*1/10 = 0.0021