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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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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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My flight takes of at 2pm from a place at 18N 40E and landed 10 Hrs later at a place with coordinates 36N40W. What is the local time when my plane landed? 1. 8.00pm 2. 6.00pm 3. 12.00am 4. 6.40pm
summi
- Oct 4th, 2007
While going from East to West we consider longitude in East West and not North South.180-(10+70)=100 deg 100deg=400min=40/3hr
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A moves 3 kms east from his starting point. He then travels 5 kms north. From that point he moves 8 kms to the east. How far is A from his starting point?
13kms how?
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A, B, C, and D tells the following times by looking at their watches. A tells it is 3 to 12. B tells it is 3 past 12. C tells it is 12:2. D tells it is half a dozen too soon to 12. No two watches show the same time. The difference between the watches is 2,3,4,5 respectively. Whose watch shows maximum time?
jothi
- Jul 6th, 2015
12:03
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Falling height is proportional to square of the time. One object falls 64cm in 2sec than in 6sec from how much height the object will fall.
Anshuman
- Oct 1st, 2020
F proportional to T ^2 so, f=kT^2 (where T is const.) 64=k2^2 k=64/4=16 then in 6sec falling distance (fd)=16*6^2 16*36=576cm(ans.)
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2 trees are there, One grows at 3/5 of the other. In 4 years total growth of the trees is 8 ft. What growth will smaller tree have in 2 years.
2 ft
leeyaitb2w
- Sep 23rd, 2010
4x+3/5(4x)=8;4x+12x/5=8;32x=40;x=1.25then,3/5(4(1.25))=3(for 4 years)for 1 year=3/4==>0.75for 2 year==>2(0.75)==>1.5 feetans:1.5 f
harshatenneti
- Sep 18th, 2010
Answer is 1.5 ftLet us assume one tree grows xft in 4 yrs, 2nd tree grows 3/5(x)ft...Total x+3/5(x)=8x=5 ft..hence 1st tree 5ft 2nd tree 3 ft for 4 yrs2nd tree for 2 yrs is 3/2=1.5 ft
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3 men finish painting a wall in 8 days. Four boys do the same job in 7 days. In how many days will 2 men and 2 boys working together paint two such walls of the same size? a) 6 6/13 days b) 3 3/13 days c) 9 2/5 days d) 12 12/13 days
prititripathi
- Nov 9th, 2010
Ans is 6 6/13to calculate it 1. 3 men in=1/8 days so 1 men in =1/24similarly 1 boy in=1/28so now calulate for 2 men n 2 boy together=1/12+1/14which is for 1 wallnow for 2 wall it will b=(1/12+1/14)/2
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A person had to multiply two numbers. Instead of multiplying by 35, he multiplied by 53and the product went up by 540. What was the raised product? a) 780 b) 1040 c) 1590 d) 1720
1590
Bhavani
- Feb 18th, 2017
1590
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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. -
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=...
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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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File transfer Question
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,...
smokincigar07
- Feb 20th, 2010
The speed at which a bucket filled is is 0.0001 kilobytes per millisecondi.e 0.1 kilobytes per secondfor Nkb time is 10N secondsNo. of buckets k=N/10 where k is the higher intiger(i.e if N/10=2.2 then...
prasadude
- Dec 13th, 2008
the speed at which a bucket filled is is 0.0001 kilobytes per millisecondthis is re-written as 0.1 kilobytes per secondi.e 100 seconds to fill a bucket which is 10kb in sizetransmission time is 10 mil...
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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?
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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...
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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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Solve 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 like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable...
ganta.jyostna
- Dec 23rd, 2011
For these type of ques, remember dis thumb rule..
X*Y-Z=18
X+Y-Z=11
X-Y-Z=2
so
N = 9 + X + Y - Z
N= 9+11=20
Avinash Chourasiya
- Nov 12th, 2011
It is question of Artificial Intelligence, and solved by various modular steps. But the simplest logic for answering these type of questions is If ((X) (operator)(expression)) then if(operator=="+")...
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Find Father's Present Age
The age of the father is 18 years older to his son. After 5 years fathers age becomes thrice of his son, What is fathers present age.
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Milk Man and His Bottles
A Milkman serves milk in packaged bottles of varied sizes. The possible size of the bottles are {1, 5, 7 and 10} litres. He wants to supply desired quantity using as less bottles as possible irrespective of the size. Your objective is to help him find the minimum number of bottles required to supply the given demand of milk.
Input Format:
First line contains number of test cases...Problem of Ages
Currently, the age of a father is three times that of his son. 2.5 years from now, age of the father becomes 2.5 times that of the son. The age of son currently is?
A. 22 years
B. 18 years
C. 15 years
D. 20 years
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Ans