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Pick the Winner
For the FIFA world cup, Paul the Octopus has been predicting the winner of each match with amazing success. It is rumored that in a match between 2 teams A and B, Paul picks A with the same probability of A's winning
sivaraj6389
- Sep 9th, 2011
33.33%
because there r 3 ways to pick probably..
1. not selecting anything
2. selecting A
3. Selecting B -
5 digit number divisible by 4
How many 5 digit numbers can be formed using the digits 1, 2, 3, 4, 5 (but with repetition) that are divisible by 4?
GANESH
- Oct 13th, 2011
Divisibility rule of 4 is last two digits are divisible by 4 so in 5 digit no last two digit should always be 12,24,32,44,52; (any one of them may be) so for last two digits 5 ways are possible ; si...
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Planet Corba
On planet Corba, a solar blast has melted the ice caps on its equator. 8 years after the ice melts, tiny plantoids called echina start growing on the rocks. echina grows in the form of a circle and the relationship between the diameter of this circle and the age of echina is given by the formulad = 4 * √ (t - 8) for t ≥ 8where d represents the diameter in mm and t the number of years since the...
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1/3 of a Number
1/3 of a number is 3 more than 1/6 of the same number. What is the number?
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A person, who decided to go to weekend trip should not exceed 8 hours driving in a day. Average speed of forward journey is 40 m/h. Due to traffic in Sundays, the return journey average speed is 30 m/h. How far he can select a picnic spot?a) 120 milesb) Between 120 and 140 milesc) 160 miles
120 miles
RAJU KUMAR
- Oct 23rd, 2011
B)
let he can select a picnic spot =x m
.
. . x/40+x/30=8
x=137.1 m
so ans is b.rajendraprasad349
- Aug 27th, 2010
Let distance = 'd'
Let us assume forward journey time is 't1'
Return journey time is 't2'
Given t1+t2=8
But time = distance / velocity
t1 = d/40
t2 = d/30
Therefore t1+t2 = d/40 + d/30 = 8
d=137.142
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Circular Handshake
36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Find the size of the smallest set of people such that the rest have shaken hands with at least one person in the set.
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Mixtures Aptitude Question
There are two glasess of orrange and lemon first we take out of 2tbps from orange and put into lemon and now take out of 2tbps from lemon and added in orrange which glass quantity is morea
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Dart Problem
A circular dart board of radius 1 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point X in the circle. What is the probability that X is closer to the center of the circle than the periphery?
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1. In a two dimensional array X(9,7) with each element occupying 4 bytes of memory with the address of the first element x(1,1) is 3000,find the address of X(8,5) ? Ans is 3212 but how explain2.194 base 10= ___ base 53.the base 5 representation of the decimal number 2048 is______4.when 3/4 of a units digit is added to ten's digit of a two number,the sum of the digit becomes 10.If 1/4 of the ten's digit added to the unit's digit then the sum of the digits is 1 less than the previous.Find the number a)94 b)84 c)48 d)88
brahmam
- Oct 21st, 2014
3012
bansal_yogesh_it_1985
- Jun 20th, 2010
deviravikumar,If X(1 2) = 3004 then how can X(1 7) = 3042 I think X(1 7) = 3024and if X(2 1) 3046 then how can X(2 7) = 3052I think it should be X(2 7) = 3070
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A person was fined for exceeding the speed limit by 10mph. Another person was also fined for exceeding the same speed limit by twice the same. If the second person was traveling at a speed of 35 mph, find the speed limit.
Let ‘x’ be the speed limit. Person ‘A’ was fined for exceeding the speed limit by = 10mphPerson ‘B’ was fined for exceeding the speed limit by = twice of ‘A’ => 2*10mph=20mphgiven that the second person was traveling at the speed of 35mph => 35mph – 20mph = 15mphTherefore the speed limit is =15 mph
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A plane moves from 9ËšN40ËšE to 9ËšN40ËšW. 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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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 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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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 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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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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Editorial / Best Answer
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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If A,B,C are the mechanism used seperately to reduce the wastage of the fuel by 30%, 40%, 10% What will be the fuel economy if they were used Combined?
A. 68.4
B. 62.2
C. 58
D. 27
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mnotageek- Member Since Jul-2007 | Jul 19th, 2007
ok let us suppose 100 kg of fuel is being wasted.. if i use the A then 30 kg will be saved n 70 kg will be wasted. now if i bring in B it will save 40% of 70 n (70*0.6)=42 kg will be wasted. Now if i incorporate C then it will save 10%of 42 i.e..,(42*0.9) 37.8 kg will be wasted... so 100-37.8=62.2 kg will be saved.. so ans is 62.2%
Anirudh Dayma
- Jul 11th, 2017
Assume total =100 then 30% = 70, 40% reduction = 3/5 and 10% reduction = 9/10. Therefore total reduction = 70X(3/5)X(9/10) = 37.8 therefore ans = 100 - 37.8 = 62.2
Mudit
- Jan 24th, 2017
How can you apply efficiency on wasted fuel?
Quantitative Aptitude Questions
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