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Two pencils costs 8 cents, then 5 pencils cost how much ?
2 pencils = 8 cents => 1 pencil = 4 cents. Therefore 5 pencils cost = 5 * 4 = 20 cents
pravesh28
- Feb 27th, 2010
It has different ans may be 40 cent (one get one free?20 cent only when both pencil has same price
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What is the probability that 4 numbers selected from 1 to 40 are not consecutive
rajeswarisvgrnthn
- Aug 30th, 2010
From 1 to 40 there are 37 possible combinations of 4 consecutive numbers.
Total number of possible combinations= 40C4.
Probability of outcome to be consecutive = 37/(40C4)= 1/2470
Probability of outcome not to be consecutive = 1-(1/2470)= 2469/2470
tiru5796
- Jun 9th, 2009
Ans: (40-4+1)
C = no. of combinations
4
Total no. of chances= 37
Probability=37/37C4
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Low temperature at the night in a city is 1/3 more than 1/2 high as higher temperature in a day. Sum of the low temperature and highest temp. is 100 degrees. Then what is the low temp?
40 deg.
jagds
- Aug 13th, 2010
Low temp=Xhigh temp=Ythan X=1/2(Y) + 1/3[1/2(y)]X=2/3(Y)We have X+Y=100Two equatios3X-2Y=0X+Y=100So...X=40....
neeti tripathi
- Dec 14th, 2009
The answer should be 33.5 As there are two equation L+H=100andL=1/3 + 1/2(H)so we getL= 1/3 + 1/2(L-100)Which gives L= 33.5 approx.
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What is the Number of zeros at the end of the product of the numbers from 1 to 100
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11. Which of the following set of numbers has the highest Standard deviation?a) 1,0,1,0,1,0 b) -1, -1, -1, -1, -1, -1 c) 1,1,1,1,1,1 d) 1,1,0, -1,0, -1Tell me please how to slove this one
rama24
- Aug 13th, 2010
There is a mathematical formula for calculating standard deviation, but you don't need it for this question. StDev is a measurement of how much variation there is among different numbers in a seri...
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1.If g (0)=g (1)=1And g (n)= g (n-1) + g (n –2) find g (6);tell me the solution
tanmoytt
- Aug 14th, 2010
G(6)=g(5)+g(4)g(5)=g(4)+g(3)g(4)=g(3)+g(2)g(3)=g(2)+g(1)g(2)=g(1)+g(0)=1+1=2S0, g(3)=2+1=3g(4)=3+2=5g(5)=5+3=8g(6)=8+5=13
Noob1
- Aug 13th, 2010
G(6)= g(5)+g(4)g(4)= g(3)+g(2)g(2)= g(1)+g(0)= 2 (Given in ques g(0)=g(1)=1)So, g(3)= g(2)+g(1)= 2+1= 3Also, g(4)= g(3)+g(2)= 3+2= 5Similarly, g(5)= g(4)+g(3)= 5+3=8And hence, g(6)= g(5)+g(4)= 8+5= 13 -ANS
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A ship started from port and moving with I miles per hour and another ship started from L and moving with H miles per hour. At which place these two ships meet? |----|----|----|----|----|----| port G H I J K L
Answer is between I and J and close to J or (L*I*H)/(H+I)
gkrishna990
- Jul 1st, 2010
Well ship A moves at 2blks per hr and ship B moves at 4 blks per hr..assuming they move towards each we should have the answer between h and i. Lets take one hr time, ship A will be at I and B at...
Rashi
- Oct 12th, 2007
If they start in opposite direction they will meet b/w J n K, and close to J.The Speed of 1st ship is I ie 2 blocks/hr n the speed of j is 1block/hr ie H. see the distence 4m the port.....
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Numerical Ability
A super fast bus of KSRTC starting from 'Trivandrum' and reaches 'Attingal' in 45 minutes with an average speed of 40 km/hr. If the speed is increased by 10 km/hr how much time it will take to cover the same distance?(a) 34 minutes (b) 36 minutes (c) 38 minutes (d) 40 minutes
dinesh_madhu623
- Feb 11th, 2010
Answer is 36 mins We can approach the problem as followsFirst we have to find the distance we can do so byspeed = 40Time = 45 minshence dt = speed * ttdt = 2 * (15)dt = 30Now the speed can be increased by 10 now the speed is 50tt = dt/speedtt = (30/50) * 60tt = 0.6 * 60tt = 36.0
sarabjit
- Aug 13th, 2009
B) 36 mind=s*ts=40 km/hr=40/60km/mint=45mind=(4/6)*45=30kmnow increased speed= 50 km/hr=50/60 km/mind=30 kmt=d/s = 36 min
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TCS Quantitative Aptitude Questions
1. My flight takes of at 2am from a place at 18N 10E and landed 10 Hrs later at a place with coordinates 36N70W. What is the local time when my plane landed.a) 6:00 am b) 6:40am c)7:40 d)7:00 e)8:00 2.in 80 coins one coin is counterfiet what is minimum number of weighings to find out counterfiet coin ?3.Three men goes to a hotel to stay ,the clerk says $30 per room/day so all the three plans to stay...
Murugesan_s
- Jan 27th, 2010
If it is east to west we should add the degrees and convert that to min. then should subtract with the total hrs given. If it is west to east do it inverse manner.In this problem 70+10=80;80*4 min=320 min=5 hr 20 minthen total hrs given=10 hrs=>10 hr-5 hr 20 min=6 hr 40 min
avin2v2
- Jul 23rd, 2008
3 since in 2 coins only 1 weighing is required 3 also 1 if 2 coins r identical then third coin is defective or else one of the 2 is defective 4,5,6,7,8 needs 1 test 9 requires 2 tests 27 requires...
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194 base 10= ___ base 5The base 5 representation of the decimal number 2048 is______
sham4u.poxy
- Jan 24th, 2010
194/5-> q=38, r=4;38/5-> q=7, r=3;7/5-> q=1, r=2;1/5-> q=0, r=1.Now reverse all the remenders...It will give -> 1234.
madhu
- Oct 12th, 2007
2048 to base 10:-2 ["add" the next (first) digit] 2 * 10 = 20 [multiply by the base] 20 + 0 = 20 [add the next digit] 20 * 10 = 200 [multiply by the base] 200 + 4 = 204 ...
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Two trees are there. One grows at 3/5 of the other in 4 years, total growth of trees is 8 ft. what growth will smaller tree will have in 2 years
< 2 ft.
jeet4u
- Jan 8th, 2010
X + 3/5x= 8 (4yrs)x=5 (larger tree)thus, smaller tree=3/5*5=3feet(in 4yrs)thus, in 2yrs, smaller tree =3/2=1.5 feet
vignes2005
- Jan 31st, 2007
Total height in 4 years=8 ftwe take it as x+ (3/5)x=8==>x(8/5)=8==>x=5tallest tree in 4y is 5ftsmallest tree is 3fthence in 2y which is 1.5 ft
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In 80 coins one coin is counterfiet what is minimum number of weighings to find out counterfiet coin?
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Editorial / Best Answer
Himanshu Ashwani- Member Since Oct-2008 | Oct 16th, 2008
The answer is 4
Divide Coins As 27 27 26
now weigh 27 and 27 keeping on both sides of pan u will get the less one
and if both sides are equal then group that has 26 coins has the coin that is counterfiet...
if u get 27 as result divide it in 3 groups
9 9 9
and weight it
keep two groups on two sides of pans and get the result of both sides are equal then the group 9 which was not kept on the pan has the coin which is counterfiet....
now 9 is divided as in 3 groups as
3 3 3 and weigh again and get result
now divide 3 as
1 1 1 and get the coin..
in start if u get answer as 26 divide as 3 groups
9 9 8
wiegh by keeping 9 on both sides and get answer if both are equal then 8 is ans
if 9 is ans again divide as 3 3 3 and then 1 1 1 and get coin...
if u get 8 then divide as 2 2 2 then 1 1 less one be yours coin...Aarthyanbu
- Dec 10th, 2009
It is about 5 times... First step to?split those 80 coins into 40. then again split 40 to 20. divide 20 into 10 and then 5 finally 2 at last find the minimum weight...
Himanshu Ashwani
- Oct 16th, 2008
The answer is 4Divide Coins As 27 27 26now weigh 27 and 27 keeping on both sides of pan u will get the less oneand if both sides are equal then group that has 26 coins has the coin that is counte...
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A work is done by two people in 24 min. one of them can do this work a lonely in 40 min. how much time required to do the same work for the second person.
In 1 minute (A+B) can do 1/24 work. A alone can 1/40 work in 1 minuteB alone can do in 1 minute = (A+B)’s – A’s = 1/24 – 1/40 = 1/60 workTherefore, b can do the same work in = 60 min
bharathmarri
- Jul 8th, 2009
Let A can do a work alone in 40 mins [Given]=> amt of work done by A in 1 min = 1/40Let B can do the same work alone in 'b' mins=> amt of work done by B in 1 min = 1/bthen, amt of work d...
bharathfeb
- Jul 7th, 2009
Let A does a work in 40 mins [Given]=> work done by A in 1 min = 1/40Let B can do the same work in 'b' mins=> work done by B in 1 min = 1/bThen, work done by A & B in 1 min = 1/40 + ...
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Jalia is twice older than qurban. If Jalia was 4 years younger, qurban was 3 years older, the diff. between their ages is 12 years
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A 0 0 0 0 1 1 1 1B 0 0 1 1 0 0 1 1C 0 1 0 1 0 1 0 1Find ( A u B ) n C
sagarpdy
- Jun 26th, 2009
It is one of the representation of setsi.e.?A={0,1,2,3}likewisehence A U B = A|B=00111111(AUB)nC= (AUB)&C=00010101Ans={0,2,4}
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A 100100011b 000110010c 100000110then find a-(buc) or au(b-c)
sagarpdy
- Jun 26th, 2009
It is a kind of set representationA={0,1,5,8}likelyhence b U c=100110110={1,2,4,5,8} ...Alt logical orA-(bUc)= {0}...normal set differenceans=000000001
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1. A ship started from port and moving with I mph and another ship started from L and moving with H mph. At which place these two ships meet ? ans is between I and J and close to J !_____!_____!_____!_____!_____!_____! port G H I J K L2. A building with hight D ft shadow upto G A neighbor building with what height shadow C ft is ans: B ft !_____!_____!_____!_____!_____!_____!_____! A B C D E F G H3. a) 2+3i (b)1+i (c) 3-2i (d) 1-7i .Find which of the above is orthogonal4. Which of the following set of numbers has the highest Standard deviation? a)1,0,1,0,1,0 b) -1, -1, -1, -1, -1, -1 c)1,1,1,1,1,1 d) 1,1,0, -1,0, -15.In a triangle which one is not possible.sides are (5 ,5 ,5.), (5 ,4 ,5 ), (4 ,4, 9 ), (3,4 ,5,).6.no.of vertices,edges, faces are given.which one among these best suits for the solid planner cube.12, 8, 6 6 ,8 ,12 4 , 8, 12 8 ,12, 67.which one among is a singular matrix. 14 6 , -373 223 , 1 0 , 10 124 3 , 1865 -1115 , 1 2 , 3 4
farzad_af
- Apr 4th, 2009
5) The sumation of the size of two sides must gives a larger number than the size of the other size:4+4
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What is the largest prime no. stored in 8bit/6bit/9bit/7bit memory?2. A,B,C are the mechanisms used separately to reduce the wastage of fuel by 25%,20%,10%.what will be fuel economy if they were used combine? ans. 46plzz give me the solution.
arun_navgo
- May 16th, 2008
2. for this ques, suppose tat 100% wastage is thr..using A, 25% is saved. now 75% is wastage..using B, 20% is saved.. ie. 75*20/100=15... ie. 15part of tat 75 is saved..so the wastage now will be 75-1...
sonalpriya
- Feb 22nd, 2007
for 1st machine 100-25 ie 75for 2nd machine 100-20 ie 80for 3rd machine its 100-10 ie 95so efficiency in rev = (90*80*75)/10000 &n...
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Quantitative Aptitude Questions
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Ans