-
The temperature at Mumbai 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?
pravesh28
- Feb 27th, 2010
ans is 16 percentlet T eqals = -t^2/6+4*t+12 ( where t is elapsed time)rate of change in temp. eqals dT/dtdat is -4t^2-36t/(18+4*T)^2here time elapsed is 3putting the value t eqal 3we get 144/900so percentade change(144/900)*100ans 16 percent
Navins
- Sep 6th, 2007
Substitute 5 and 8 in the given equation for 5 you will get 21for 8 you will get 32asked that percentage fall or rise in temper 21/32*100 this will be the answer i.e 65%
-
Aptitude : find number of cats
A number of cats got together and decided to kill between them 999919 mice. Every cat killed an equal number of mice. Each cat killed more mice than there were cats. How many cats do you think there were?
ramsri_00
- Mar 22nd, 2010
Assume ,n=Number of cats and m=Number of mice per cat Given that,n*m=999919 and m>n Solution,n*m=(1000000-81)=1002-92=(100+9)*(100-9)=109*91=109*13*7Finally , n*m=109*13*7The followi...
-
How many 9 digit no.s are divisible by 7
A.1256b.1986c.1524d.1874
pravesh28
- Mar 28th, 2010
The 100000 first 9 digit number First number divisible by 7 is 1000006 (First term) Greatest 9 digit number is 9999999 and divisible by 7 is 9999997 (nth term) 9999997 equals 1000005+(n-1)7 Solving we get n equals 1285714
suchintya
- Jun 13th, 2008
128571428 is the correct answer that i copied from the above. But i apreciate that........Cheers
-
Ram is 27 year old then Mohan. After 7 years Ram's age is thrice as Mohan's age. Find Ram's age?
67/2
Rupeshil
- Apr 2nd, 2010
Let Mohan Age be x and Ram age be yAq- x+27=y--------------(1)After 7 years - 3(x+7)=y+7---------(2)From (1) and (2)x+27=3x+142x=13;x=6.5then Ram's age is 33.5
samreddy123
- Oct 11th, 2008
Ram's age is 67/2since R=27+Mafter 7years R+7=3(M+7)on solving both equations v get mohan's age as 13/2 and ram's age as 67/2
-
Balls
A sporting goods store ordered an equal number of white and yellow balls.The tennis ball company delivered 45 extra white balls,making the ratio of white balls to yellow balls 1/5 :1/6how many white balls did the store originally order for?a)450 b)270 c)225 d)none of these
anilkumar_cse
- Apr 1st, 2010
Given ratio is of white and yellow balls and it is 1/5:1/6.=> 6:5=> Therefore the total balls are in 11 parts.=> so the total balls delivered must be divided by 11.=> From the answers 450 + 45 is divided by 11, so the answer is a=>450
milindnsec
- Dec 30th, 2009
Let there is x no of each ball, when 45 white ball is added total number of white ball = x+45 now accordingly x+45x=...
-
File Transfer
A file is transferred from one location to another in 'buckets'. The size of the bucket is 10 kilobytes. The bucket gets filled at the rate of 0.0001 kilobytes per millisecond. The transmission time from sender to receiver is 10 milliseconds per bucket. After the receipt of the bucket the receiver sends an acknowledgement that reaches sender in 100 milliseconds. Assuming no error during transmission,...
jaykissan
- May 24th, 2010
To fill the bucket 100 sec, To transfer 1 bucket, 100.110 sec, To transfer n bucket, 100.11n, To transfer n kb,10.011n sec
-
Percentage of Rise in Temperature
The temperature at Chennai 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 4.00 PM and 9.00 PM?(a) 23.5%
(b) 33%
(c) -32.5
(d) 20%
(e) 46%sid08harth
- May 27th, 2010
4pm is 16 hours from midnight..9pm is 21 hours from midnightfor 4pm...we get..-16*2/6+4*16+12 = 89for 9pm...we get..-21*2/6+4*21+12 = 71 (approx)% change = 18/89 *100 = 20% (Approx)
-
Find how much younger is the new member
The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member?
Read Best Answer
Editorial / Best Answer
superstardlx- Member Since Aug-2008 | Aug 27th, 2008
let the members be a1,b,c,d,e,f,g,h,i,j .Let a2 be the younger member who replaces a1.
we have,
a1+b+c+......+j=a2+b+4+c+4+d+4+.....+j+4
=> a1+b+c+....+j=a2+b+c+..+j+36
hence,the oldest member is 36 years older than the new memberibulal
- Jun 9th, 2010
On the inclusion of the new member in the committee, there is no change in the average age of the committee members as it was 4 years back implying:The newly substitute in the committee is a younger c...
jamesjac
- Feb 8th, 2010
Four years back, Let the sum of the Ages of the 9 members of the committee( Who still continues ) be M. Let the age of the 10th memeber at that time be R. Hence the average age of the 10 m...
-
If log(3.14) and log(3.16) are given, What is the value of log(3.15)?
gkrishna990
- Jul 4th, 2010
Log(3.14)=log(3.15-.01)=log(3.15)/log(.01)Having known the values of log(3.14) and log(.01) on cross multiplying we get log(3.15)
decentshabbir
- Oct 8th, 2008
Log(3.15) = log(3.14 + 0.01) log(3.15) = log(3.16 - 0.01) log(3.15)* log(3.15)= log(3.14) * log(0.01) * log (3.16) / log(0.01) log(3.15)* log(3.15)= log(3.14) * log (3.16) 2 * log(3.15)= (log(3.14) * log (3.16) ) log(3.15)= (log(3.14) * log (3.16) )/2
-
A family, planning a weekend trip, decides to spend not more than a total of 8 hours driving. By leaving early in the morning, they can average 40 miles per hour on the way to their destination. Due to the heavy Sunday traffic, they can average only 30 miles per hour on the return trip. What is the farthest distance from home they can plan to go?(a) 120 miles or less (b) Between 120and 140 miles (c) 140 miles(d) Between 140 and 160 miles (e) 160 miles or more
samir kumar roy
- Jul 7th, 2010
Since in 8 hour they will travel=8*40=320but due to traffic the will travel is 8*30=240 means 80 less than that. so btwn 240
haseeb
- Feb 23rd, 2007
Ans:120-140 miles
-
How to solve questions which involves arthematic operations on alphabets like xxxx yyyy +zzzz====== yxxxz======
SRINIVAS_SRIT
- Jul 18th, 2007
R4 R3 R2 R1 x x x xy y y y+ z z z z-------------------------------...
-
The size of the float data type in C language is …
S
- Mar 19th, 2006
Compiler dependent In TURBOC it is 4 But depends from compiler to compiler it varies
-
Odd One Out
1. Select the odd one out a. Oracle b. Linux c. Ingress d. DB22. Select the odd one out a. WAP b. HTTP c. BAAN d. ARP3. Select the odd one out a. LINUX b. UNIX c. SOLARIS d. SQL SEVER4. Select the odd one out a. SQL b. DB2 c. SYBASE d. HTTP
archie_strider
- Jul 30th, 2010
1. Linux (all other are DBMS)2. BAAN3. SQL SERVER (all other are O.S.)4. HTTP (all other are dbms)
-
Numbers neither Divisible by 8 or 12
Find out the total numbers between 1 to 999 that are neither divisible by 8 nor by 12
-
4.In two dimensional array X(7,9) each element occupies 2 bytes of memory.If the address of first element X(1,1)is 1258 then what will be the address of the element X(5,8) ? whats the ans
bangalo
- Aug 4th, 2010
The answer is1) If it is a row based then 1258+2(9(5-1)+(8-1))=1258+2(36+7)=1258+86=13442)
If it is column based then1258+2((7(8-1)+(5-1))=1258+2(49+4)=1258+106=1364. -
If a^x=b^y=c^z and b^2=ac then find x+z/xz=?
2/y
mohammed.ziaullah
- Aug 6th, 2010
A^x=b^y=c^z=k(say)then,a=k^(1/x),b=k^(1/y),c=k^(1/z);..........(1)given b^2=ac {K^(1/y)}^2=k^(1/x)*k^(1/z);k^(2/y)=k^(1/x+1/z)2/y=1/x+1/z2/y=x+z/xzhence the answer is 2/y "100% it is correct answer"
darshan029@gmail.com
- Jun 15th, 2007
Let a^x=b^y=c^z=kso, a=k^1/x , b=k^1/y , c=k^1/zb^2=acso, k^(1/y)^2=k^1/x+k^1/z 1/y^2=1/x+1/z 1/y^2=x+z/xzans is 1/y^2
-
Coin Puzzle
What is the minimum no of coins of the same size that can be placed on a table so that each coin touches only three, others? All coins must lie flat on the table. What will be the arrangement of the coins?
luckySharms
- Aug 12th, 2010
I belive the answer is 20. 5 sets of four diamonds which when put together form a circle. Hard to eplain without a picture. The each daimond has no space in the middle. Two coin...
-
In a office, 30% are supervisors, 40% are male employees, 60% of supervisors are male. Probability that a random chosen employee is a male or a female?
unrealvicky
- Aug 16th, 2010
I would say probability of randomly chosen a male employee is 22% while that of female is 48%. Base on my understanding of the question, let 'x' be the total employee (supervisors and ordina...
rajintouch
- Jan 23rd, 2009
It was clearly mentioned that there are 40% of male employees inthe office....then we can conclude that the answer is "male:female=4:6"
-
Low temperature at the night in a city is 1/3 more than 1/2 hinge as higher temperature in a day. Sum of the low temp and high temp is 100 c. then what is the low temp.
40 centigrade
sanjeev.ratn
- Feb 25th, 2008
Let x be the low temp at night..and y be the high temp..in dayfrom the given condition1/2(x)=1/3(y)=:3x=2y----------------------(2)and also given thatx+y=100-------------------(1)from equation 1 and 2 we get. the answer..x=40,so,low temperature is 40 c
-
One circular array is given(means memory allocation tales place in circular fashion) diamension(9X7) and sarting add. is 3000,What is the address od (2,3)........ What is the answer? Pls explain to me with steps
tamaldutta000001
- Aug 26th, 2010
I cant draw the pix here so giving the formulaThe address would beB(base add.)+[(i-Row_start)*(Column_limit-Column_start+1)+(j-Column_start)]*width provided that array index start from (1,1). Here i...
vishal
- Nov 30th, 2006
it's a 9x7 int array so it reqiure a 126 bytes for storing.b'ze integer value need 2 byes of memory allocation .and starting add is 3000so starting add of 2x3 will be 3012.
Aptitude Interview Questions
Read Best Answer
Ans