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Given d value of log 3.142 & log 3.143. to find the value of log 3.141
prititripathi
- Feb 25th, 2011
By applying log formula logm/logn=logm-lognn log(3.143)/log(3.142)=log.0001againlog(3.142-.001)=log 3.141
hmvasista
- Apr 29th, 2010
Log indentities are:log a - log b = log(a/b)log a + log b = log(ab)we can proceed by taking letlog 3.142 = x, so 3.142= 10^xlog 3.143 = y, so 3.143= 10^yand make appropriate substitutions....
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How to solve the $ and * problem. if $=1,*=0value 1 doubles and shift to left place.t(for ex:4=$**,3=$$)even i dont know the quetion properly. but the samepattren question appeared in cts too.pls expLCM(9,18,27)=
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Shwethascar- Member Since Jul-2008 | Jul 8th, 2008
lcm of 9,18,27 is 54
that can be represented as 110110 in binary
that's $$*$$*prititripathi
- Feb 25th, 2011
Lcm (9,18,27)=54convert it into binary u vll get 110110express it in $ * as =$$*$$*
Shwethascar
- Jul 8th, 2008
Lcm of 9,18,27 is 54that can be represented as 110110 in binarythat's $$*$$*
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If the circumference of a circle is 100 units, Then what will the length of the arc described by an angle of 20 degree?
prititripathi
- Feb 25th, 2011
Length of arc =angle/360 *circumferenceso (20/360)*100length of arc=50/9
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Three independent mechanisms A,B and C have been incorporated for fuel saving in a car producing respectively 30%, 20%, and 40% efficiency. Assuming that they operate independently, what is the net fuel efficiency achieved?
prititripathi
- Feb 25th, 2011
Fuel saving 30%=100-30so total vll b=((100-30)*100-20)*(100-40))/100*100*10066.4
c.sindhureddy
- Feb 13th, 2010
Why are you subtracting it from 100?They gave us there efficiences right directly.Can you clarify me plz.
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Find the next number in the series 3, 4, 6, 9, 13,?
Next number will be 18.This is fibonacci series X, X+1, X+2, X+3.....
prititripathi
- Feb 25th, 2011
Series is like dat difference b/w 3-4 is 0next one 1 ,2 n so onso next no. vll b 18
hmvasista
- Apr 29th, 2010
The answer is 18 ie 3+1=4 4+2=6 6+3=9 9+4=13so 13+5=18This is not a fibonacci series.... it is 0,1,1,2,3,5,8,13,21,34....
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600 to be seated. 10 benches are less. 2 more persons are required to be seated in each bench. How many benches.209364460
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Answered by: naveengupta
- Jun 26th, 2007
ans is 60 benches
let x=no of benches
y=no of students per bench
given
x*y=600,---------(1)
and given that 10 benches are less hence 2 students are seated more than per bench then
600=(x-10)*(y+2)
600=xy+2x-10y-20------------(2)
since xy=600
then eq(2) is
2x-10y=20
2x-10(600/x)=20
on solving
we get x=60prititripathi
- Feb 25th, 2011
Given a*b=600& (a-10)*(b+2)=600ab-10b+2a-20=600we knw ab=600so 2a-10b=202a-10*600/a=20solve quadratic eq. we get a=60 b=10
SAUREEN ADANI
- Jun 10th, 2010
10*60=60012*50=600it means per bench 10 student requirs 60 benches.but 10 are less so that on 50 benches to accomodate 12 per bench. it means 2 more to be seated on each bench. so the answer is 60.
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Pipes are laid by an oil company
Pipes are laid by an oil company. If the company has to lay down 3km of pipes and each pipe is 25 meters long, calculate and print the number of pipes needed to cober the distance
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Minimum Weighing Operations
If we have to weigh 31 kgs of rice using only 1 kg stone. What are the minimum number of weighing operations required?
fishpie_123
- Mar 2nd, 2011
5 weighing operations:Rice Counter weight==== ==============1kg (1kg stone)2kg (1kg rice + 1kg stone)4kg (1+2+1)8kg (1+2+4+1)16kg (1+2+4+8+1)================total: 31kg rice
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Upside Down
In the 20th century there is a year, which does not change if viewed upside down. Which is the year?
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Boys in a Row
Some boys are standing in a row, Suresh is 10th from right and Amar is seventh from left. If there are five boys in between Suresh and Amar, How many boys are there in the row?
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Find Number of Pages in the Book
There is a book with some number of papers with numbers on the book were cut. So a boy counts the number of pages and given numbers to that book. He got 3 digit numbers 61 times. Then find the number of pages in that book?
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Minna Mathew- Member Since Jan-2011 | Jan 6th, 2011
160 ........ie (100 to 160) therefore total 61 times
so the anser is 160 -
Bobby Weighs
Bobby weighs 160 lbs more than his sister maria. Their combined weight is 200lbs. How many lbs does bobby weigh?
ganesan4632
- May 21st, 2011
Bobby Weighs : 180 lbs ( 160 lbs greater than her sister - ?(180-20))Sister Weigh - 20 lbsCombined weight : 200 Lbs
lavanya.rjs
- Jan 4th, 2011
Let Bobby's weight be x lbs.then Maria's weight will be (x-160) lbs.so, x+x-160= 200hence x= 180 lbs.
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Reverse the Digits of Age of Father
When you reverse the digits of age of father you will get the age of son. One year ago the age of father was twice that of son's age. What are the current ages of father and son?
ganesan4632
- May 21st, 2011
Current Age:Father Age should be - 73 Yearsson age will be - 37 Years (Reversal of Father Age)One Year Before:Father Age is 72 Years(Double of Son's age)Son Age is - 36 Years
ananthk
- Nov 25th, 2010
This type of qn`s done by trail and error methods. firm you have to form eq. based on given data then you have to submit values given in ans.if f=10x+y is father age then s=10y+x is son agethen f-1=2(...
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Aptitude Ans.
A person is prisoned for 60 days . In that 60 days he earns rs.170.If he works he will get payed Rs.7 per day. If he doesn't work Rs.3 he should pay to that prison.Find out how many days he worked.
cruize
- Jun 28th, 2011
No.of working days are 35 Dayslet the no.of working days=xthen the no.of he was absent =60-xfor every working day he gets Rs.7/- & non working day he loses Rs.3/-so,7x-3(60-x)=17010x=350x=35
ratnanp
- Nov 10th, 2010
He worked 35 days.He has not worked for 25 daysWorked 35*7=245Less Not worked 25*3=75So 245-75=170
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What distance he covered in one way?
A man walks at 4 km/hr on plain, then at 3 km/hr uphill and then returns through the same road at 6 km/hr downhill and at 4 km/hr on the plain. It takes altogether 6 hours. So what distance he covered in one way?
superstardlx
- Jul 5th, 2011
Let the distance covered one way on plain be x ,uphill be ytime = distance travelled/speedx/4 + y/3 + y/6 + x/4 = 6x/2 + y/2 = 6x+y=1212km
uling728
- Jul 3rd, 2011
24.t_p: the time for plain. t_up: the time for uphill. t_down:: the time for downhill.(1): t_up * 3 = t_down * 6 ==> t_up = 2 * t_down ; because they have the same distance.(2): t_p...
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What is the sum of all the four digit numbers formed using the digits 0, 1, 2 and 3. None of the two digits should be repeated.
superstardlx
- Jul 5th, 2011
total number of such numbers = 18 sum of all digits in units place :0*2 ( 3 in thousands place)1*22*20*2 (2 in thousands place)1*23*20*2 (1 in thousands place)2*23*2------244 in units place...2 c...
santhosh_sandy
- Jul 4th, 2011
In addition to them we have to add 012303210132021303120231these are also digits dude!!! so i think? your answer (38664) must be added with 1332which leads to 39996 would be the right answer!!!?? what do u say guys??
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Six swimmers Aptitude Question
Six swimmers A, B, C, D, E, F compete in a race. The outcome is as follows. i. B does not win. ii. Only two swimmers separate E & D iii. A is behind D & E iv. B is ahead of E , with one swimmer intervening v. F is a head of D
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Points Collection
Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line, i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P). The minimum value of n1(P) over all configurations P of 5 points in the plane in general position (.i.e no three points in P lie on a line) isa) 3 b)...
abi
- Jul 25th, 2011
5.
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Toys Distribution Probability
Seven different toys are distributed among 3 children how many different ways are possible?
sam
- Aug 10th, 2011
3^7 ways!!!
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A Number Divided by 3D
A number when divided by D leaves a remainder of 8 and when divided by 3D leaves a remainder of 21 . What is the remainder left, when twice the number is divided by 3D? a) 13 b) cannot be determined c) 3 d) 42
Aptitude Interview Questions
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