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Probability that India wins the World Cup
Paul, the octopus who has been forecasting the outcome of FIFA world cup matches with tremendous accuracy has now been invited to predict ICC world cup matches in 2011. We will assume that the world cup contenders have been divided into 2 groups of 9 teams each. Each team in a group plays the other teams in the group. The top two teams from each group enter the semi finals (after which the winner is...
Avik Dasgupta
- Dec 17th, 2010
We have two chances to win the world cup. Either India can win all 10matches or Win 7 out of 8 group matches + win the semi final and final matches. Case 1: To win all 10, probability is ...
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Jalia is twice older than Qurban
Jalia is twice older than qurban. If jalia was 4 years younger, Qurban was 3 years older their difference between their ages is 12 years. What is the sum of their ages?a)67 b)57 c)36 d)none
prititripathi
- Dec 20th, 2010
Let qurban age x n julia =2x so acc. to que2x-4-(x+3)=12x=19 n julia age= 38 sum of their age =19+38=57
madhurimasridhar
- Mar 5th, 2009
Suppose Qurban is x yrs.? then Jaila is 2x yrs (twice older than Qurban)If Jaila is 4 yrs younger, Qurban is 3 yrs older then their ages diff is 12 yrsso (2x-4)- (x+3) = 12Now we solve it we got x value as 19yrsSo sum of their ages is 38+19 = 57.
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There are two numbers in the ratio 8:9. if the smaller of the two numbers is increased by 12 and the larger number is reduced by 19 thee the ratio of the two numbers is 5:9.Find the larger number?
karthisiva
- Dec 21st, 2010
(8/9)x*12/19=5/9,sollution multiply 8 with 9 and 9 with 5,so we get 72-45, and same for 12 and 19,we get 27x=108-95,x=13/27,x=1/2.1,largest number =9*1/2.1therfore the largest number is 4.5.
ksrikant
- Dec 19th, 2010
X:y=8:9 this means x is smaller than y(as x = (8/9)y). According to condition x+12/y-19 =5:99x+108 = 5y-95but 9x=8yso, 8y+108 = 5y-953y = -203y= -203/3, which is the larger number.
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What is the o/p of the following C-program?Main(){Char *str[] = { "Frogs"," do", "not", "die", "they", "croak!");Printf("%d %d",sizeof(str),sizeof(str[0]));}
adeshgupta
- Oct 15th, 2009
24,4(in unix)sizeof(str[0])= storage address=inteter=4bytes;same as sizeof(str)= storage address of 6 =6*4bytes;
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What is the maximum no. of arguments that can be given in a command line in C?
karthisiva
- Dec 21st, 2010
As far as I know, it depends on the first argument which represents the number of arguments.If argc is 2 bytes in length, 65535 strings can be passed. If argc is 4 bytes in length, 4294967295 strings ...
Ashish Agrawal
- Nov 20th, 2006
NEVER!If you are deciding the numbers of arguments on the basis of size of int in 32 bit compiler, it should be 2^31-1. that is almost square of 32767.And The memory allocated to argv is from RAM. SO do you really think compiler allocates memory holding 2^31-1 strings of any size!
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What is the value of the following series1/7 + 2/72 + 1/73 +2/74 + 1/75 + ……….
karthisiva
- Dec 22nd, 2010
From the given equation the numbers are sequently incresed by one and decrease by 1 in numerator and in denominator it sequentialy increase by 1.eg: 2/72+1/73+2/74eg72,73,74,75.so the next number is 76and in numntr it incrs by 1therefore the answer is 2/76+1/77+2/78...
Sana
- Aug 31st, 2007
1/7+1*[73^(-1) +.........................+(70+(2n+1))^-1+.......................]+2*[ 72^-1 + ........+(70+(2n))^-1+.................]In the above series,the second term follows H.P with d=2 and a=73....
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Land Fence
Mr. loyd wants to fence his Square shaped land of 120 Sqft each side. If a pole is laid every 12ft how many poles do he need?
lavanya.rjs
- Jan 3rd, 2011
Area= 120 sq.ft. givenEach side= 10.954 ft.Hence a 12ft. pole cannot be fenced.
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Find the Number
Two numbers 1361, 1468 when divided by certain number leaves remainder 7,11 respectively. Find the Number
lavanya.rjs
- Jan 3rd, 2011
There is no such number since,? 1468=(31*47)+11Where 31 & 47 are prime numbers and cannot divide (1361-7)?or 1361.
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Area of Square
A circle is inscribed in a Triangle of side 6cm and a square is inscribed in the Circle. What is the area of square?
lavanya.rjs
- Jan 3rd, 2011
Radius of the circle inscribed in tringle will be 2cm.side of the square?inscribed in the circle will be sqr.rt.8.Then area of the square = 8cm.
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Numbered Statements
A sheet of paper has statements numbered from 1 to 20. For all values of n from 1 to 20, statement n says'at most n of the statements on this sheet are false'. Which statments are true and which statements are false?
lavanya.rjs
- Jan 4th, 2011
statement 19: nineteeen statements are false. - true. statements 1-18&20: - falsecheck: &nb...
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Find the Base
Find the base where 310 can be written as 1234?
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After 10 years A will be twice the age of B before 10 years.and now if the difference is 9 years between them then what is the age of B after 10 years
49a
mdeulkar
- Dec 20th, 2009
Let?present ages be?'a' and 'b'.after 10 yrs A's age will be? a+10and that of B will be b+10age of B before 10 yrs? = b-10so given condition is a+10=2(b-10)second condition is a-b=9solving these two equations we getb=39so after 10 yrs B's age will be 39+10=49
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Temperature at Bangalore
The temperature at Bangalore is given by the function: -t2/6+4t+12 where t is the elapsed time since midnight. What is the percentage rise (or fall) in temperature between 5.00PM and 8.00PM?
raufkatoo
- Jan 11th, 2011
39%This is done by differenciating given function, because rate of change of any function is given by differencation of the given function.....
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TCS Aptitude Questions
1) In the class of 40 students, 30 speak Hindi and 20 speak English. What is the lowest possible number of students who speak both the languages?(a) 5 (b) 20 (c) 15 (d) 10 (e) 302) If A, B and C are the mechanisms used separately to reduce the wastage of fuel by 30%, 20% and 10%. What will be the fuel economy if they were used combined. 3) A can do a piece of work in 20 days, which B can do in 12 days....
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Editorial / Best Answer
koteeswarrao- Member Since Mar-2010 | Mar 2nd, 2010
The formula is p(a union b)=p(a)+p(b)-p(a intersect b)
so, according to our problem p(a union b )=40 p(a)=30; p(b)=20;
so, we have to find p(a intersect b), so=30+20-40 =10prititripathi
- Dec 20th, 2010
20 men completes worh in 1/15 days1 men in =1/15*2025 men in=25/20*1525 men completes in 12 days
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Min-Max Game
Alok and Bhanu play the following min-max game. Given the expressionN = 9 + X + Y - Zwhere X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would
arpeekay
- Jan 13th, 2011
In such type of question will always sum upto a constant number when the game is played optimally.In d above question the value of x+y-z=11.therefore 9+11=20
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An INK bug starts jumping 1 meter to each direction north, south, east and west respectively. It marks a point in the new locations. It comes back to its original point after jumping in all directions. It again starts the same process from the newly drawn unique points. Totally how many points did the bug mark?
harini_src
- Jan 13th, 2011
It's 2.or 4.First north and then south,which is the origin.second east and then west,which is the origin again!If this process repeats then two moreSO the answer is either 2 or 4.
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Find Possible Number of Combinations
There are A, B techers and C,D doctors. Find the possible no. of combinations that should not be repeated more than once?
manishkraasawat
- Jul 7th, 2010
There are 15 possible combination 4C1+ 4C2 + 4C3+ 4C4= 15One value missed is ACD in the above given 14 combinations.
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Calculate and print the amount of money paid to each worker
A carpenter is paid a contract fee of $2000 for 3 days work. He hires 3 workers who work for 3 days at $75 a day. Calculate and print the amount of money paid to each worker, the total paid to each worker,the total paid to all workers and the amount the carpenter is left with.
Abinaya Roshini
- Jan 17th, 2011
The amount paid to each worker is 75 per day, total paid for each worker is 225, total paid for all workers is 675, the money left for carpenter is 1325.
levteck
- Sep 13th, 2010
Each worker get 3 times $75 for a total of $225 after three days3 workers were hired so total of all workers would cost $675the total contract was $2000 minus total labor cost $675 then $1325 remains to the carpenter.
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A company gives out bonuses
A company gives out bonuses based on the amount of income generated by their sales representatives per month. Once the income generated is greater than or equal to $10,000 a bonus of 20% is given. If the income generated is greater than or equal to $8000 but less than $10,000 a bonus of 15% is given. If the income generated is greater than or equal to $5000 then a 3% bonus is given. Read the income...
Abinaya Roshini
- Jan 17th, 2011
For sales representative gaining income above or equal to 10000 the bonus will be 2000 and above,if income range between 8000 to 10000 the bonus will be a range of 1200 to1500,if income equal to or above 5000 the bonus will be 150 and above
yuviii
- Apr 24th, 2010
Let x be the income generated.if x>=10,000 then bonus is 2000Rs therefore the income left is 8,000.if x>=8,000 and <10,000 then bonus is 1,200Rs therefore the income left is 6,800.if x>=5000 then bonus is 150Rs therefore the income left is 4,850.
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Aptitude Power Unit Question
A power unit is there by the bank of the river of 750 meters width. A cable is made from power unit to power plant opposite to that of the river and 1200mts away from the power unit. The cost of the cable below water is Rs.15/- per meter and cost of cable on the bank is Rs.12/-per meter. Find the total of laying the cablea. 15550 b. 15650 c. 16560 d. 16650 e. None of these
aishs8
- Jan 23rd, 2011
River width=750 mBank width=(1200-750)=450mCost of cable along river=750*15 =11250Cost of cable along bank=450*12=? 5400Total cost of cabling =11250+5400 = 16650
aishs8
- Jan 23rd, 2011
29 mice are required to test the cans.As the time constarint of 24 hours is mentioned, I think this is optimal.We can discard 30th can as even if one mice dies, we can find the poisoned can.
Aptitude Interview Questions
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