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Finding Correct Socks Probability
There are 5 distinct pairs of white socks and 5 pairs of black socks. Find the probability to have at least one pair of correct socks.
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The total expense of a boarding house are partly fixed and partly variable with the number of boarders. The charge is Rs.70 per head when there are 25 boarders and Rs.60 when there are 50 boarders. Find the charge per head when there are 100 boarders. a) 65 b) 55 c) 50 d) 45
KABILAVARMEN
- Aug 31st, 2016
for 25 members = 25*70=1750 for 50 members = 50*60=3000 therefore 3000-1750=1250 so, 1750-1250=500 this 5oo is common. therefore 1250 for every 25 members therfore to check for 25 members ...
arina
- Jan 1st, 2010
Let fixed cost=a, variable cost=kWe can write a+25k=70*25=1750a+50k=3000We get k=50then a=3000-(50*25)=500Charge per head= (500+100*50)/100 = 55
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If A is travelling at 72 km per hour on a highway. B is travelling at a speed of 25 meters per second on a highway. What is the difference in their speeds in m/sec.
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Answered by: pratibha
- Nov 5th, 2007
5 m/sec
jeevan ambati
- Aug 30th, 2016
When we convert 25 m/sec into km/ hour we get 90 km/hour so the difference in their speeds would be
90-72=18 km/hour.. or 5 m/sec (18 km/hour converted in m/sec )jeevan ambati
- Aug 30th, 2016
If the speed of B is converted in Km/hour it would be 80 km/hour... so the difference would be 80-72=8 km/hour or 8 km/hour
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A Car has run 10000 miles using 5 tyres interchangeably have an equal wornout by all tyres How many miles each tyre should have run??
Ans.4000 Miles per tyre...But How?
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a 100100011b 000110010c 100000110then find a-(buc) or au(b-c)
ssmaranika
- Aug 26th, 2016
Please explain it clearly
rajeswarisvgrnthn
- Aug 30th, 2010
(buc)=100110110(i) we know that (a-b)=a intersection b'therefor a-(buc)=a intersection (buc)'(buc)'=011001001a intersection (buc)'=00000001=a-(buc)(ii)similarly au(b-c)=100110011
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Running around circular stadium
A, B and C start at the same direction to run around a circular stadium. A completes a round in 252 sec, B in 308 sec and C in 198 sec, all starting at the same point. After what time will they meet again at the starting point?a)26min 18sec b)42min 36sec c)45min d)46min 12 sec
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TCS C/C++ Questions
1. Difference between "C structure" and "C++ structure".2. Diffrence between a "assignment operator" and a "copy constructor"3. What is the difference between "overloading" and "overridding"?4. Explain the need for "Virtual Destructor".5. Can we have "Virtual Constructors"?6. What are the different types of polymorphism?7. What are Virtual Functions? How to implement virtual functions in "C"8. What...
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Answered by: Rajini
- Feb 19th, 2007
Q. Difference between "C structure" and "C++ structure".
Ans:- C structure cannot have member functions but C++ structure can have. Also in a C structure by default all data members of structure are public and access cannot be changed by specifying the private or protected keywords but in C++ eventhough by default members are public we may change the access using the keywords private and protected.
Q. What is the difference between "overloading" and "overridding"?
ans:- Overloading is a process of having the same function name but different no of arguments or types of arguments within the same class but overriding means redefining a baseclass functions definition in the subclass.
Q. Explain the need for "Virtual Destructor".
Ans:=Virtual destructor ensures destruction of subclass and base class objects in proper order.
Q. What are the different types of polymorphism?
Ans:-Overloading and overriding.
Q. What are the different types of Storage classes?
ans:-Auto,Register,static and extern
Q. What is the difference between "calloc" and "malloc"?
Ans:- calloc and malloc are used for dynamic memory allocation. Calloc initializes the memory locations to zero by default but malloc memory contains garbage values.
Difference between "printf" and "sprintf".
printf will write to the console. sprintf will write to the buffersuneel kumar alld
- Apr 2nd, 2016
Loop - Loop is a block of code that execute numbers of time until expression or statement return zero (0)
Shreya
- Feb 3rd, 2016
Namespace : It is a declarative region that provides scope to the identifiers inside it.
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There are 4 balls and 4 boxes of colours yellow, pink, red and green. Red ball is in a box whose colour is same as that of the ball in a yellow box. Red box has green ball. In which box you find the yellow ball?
Pink
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Answered by: RAHUL SINGH
- May 20th, 2006
ans is green...
yellow box can have either of pink/yellow balls.
if we put a yellow ball in "yellow" box then it wud imply that "yellow" is also the colour of the box which has the red ball(becoz acordin 2 d question,d box of the red ball n the ball in the yellow box have same colour)
thus this possibility is ruled out...
therefore the ball in yellow box must be pink,hence the colour of box containin red ball is also pink....
=>the box colour left out is "green",,,which is alloted to the only box left,,,the one which has yellow ball..
sanjay
- Mar 21st, 2016
Green Box
Asha Pradeesh
- Apr 29th, 2015
Green
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The number 362 in decimal system is given by (1362)x in the X system of numbers find the value of X a}5 b) 6 c) 7 d) 8 e) 9
saurabh
- Mar 1st, 2016
Answer is b) 6
farzad_af
- Apr 4th, 2009
6 is not a feasible answer for this problem, notice there is a "6" in the numbernone of answers is correct
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A salesperson multiplied a number and got the answer 3, instead of that number divided by 3.What is the answer he actually has to get?
(1/3) *1 * 3 = 3, so number = 1Divided by 3 Answer: 1/3.
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Find Maximum Marks
. A candidate appearing for an examination has to secure 40% marks to pass paper I. But he secured only 40 marks and failed by 20 marks. What is the maximum mark for paper I?
ankit sarkar
- Feb 15th, 2016
150 marks
sneha562
- Jul 1st, 2011
Let us consider x is the maximumber number of marks.secured marks => 40% of x= 40/100 of x=2x/5To pass an exam he has to score =fail marks+20 =40+20=60 2x/5=60 x=150maximum marks for paper I is =150
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A, B, C, and D tells the following times by looking at their watches. A tells it is 3 to 12. B tells it is 3 past 12. C tells it is 12:2. D tells it is half a dozen too soon to 12. No two watches show the same time. The difference between the watches is 2,3,4,5 respectively. Whose watch shows maximum time?
jothi
- Jul 6th, 2015
12:03
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A plane moves from 9˚N40˚E to 9˚N40˚W. If the plane starts at 10 am and takes 8 hours to reach the destination, find the local arrival time
Udit
- May 9th, 2015
12:30
chandradeepika
- Jun 11th, 2008
40deg E to 40deg west. first add the deg 40+40=80. for 1 deg=4min so 80deg=80*4=320=5hrs20min arriving time=starting time+hrs of journey -5hrs20min. minus(-) is used becoz the direction is from east to west. so 10+8-5hrs20min=12.40pm
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The C language terminator isA. semicolonB. colonC. periodD. exclamation mark
kavitha b h
- Mar 1st, 2015
A
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