Ques:- Two pipes function simultaneously the reservoir will be filled in 12 hours. One pipe fills reservoir 10 hours faster than the other. How many hours does the faster pipe take to fill the reservoir?
Recent Answer : Added by Manik rattan On 2021-08-16 06:56:14:
suppose
pipe:
A -30 hours A’s effeciency (60/30) =2
60( lcm of 30 and 20)
B- 20 hours B’s effeciency (60/20)=3
time taken by both to fill = 60/5 =12 as given in question (effeciencies of both a+b =2+3=5)
time taken by faster pipe i.e b = 60/3 =20
Ques:- About hostel & my college
Ques:- What is the importance of computer.
Ques:- 1) In a club there are certain no. of males and females. If 15 females are absent then no. of males will be twice that of females. If 45 males are absent then female strength will be 5 times that of males. Find no. of males actually present.
Recent Answer : Added by Admin On 2020-05-17 12:01:55:
Let the number of males be given the name M.
Let the number of females be given the name F.
If 15 females are absent, then M will be twice that of
present females.
This means that M = 2 * (F – 15)
M = 2 * F – 30.
or 2 * F – M = 30.
Now if in addition to the 15 females being absent, we also
have 45 males being absent,
then this gives the equation,
(F – 15) = 5 * (M – 45)
which simplifies to
F – 15 = 5 * M – 225
5 * M – F = 210
Pulling the equations together, we get
5 * M – F = 210
-M + 2 * F = 30
Multiply the first equation by 2, and keep the second
equation as is.
10 * M – 2 * F = 420
– M + 2 * F = 30
Add the equations.
9 * M = 450
M = 50
Verify answer.
Calculate F
from – M + 2 * F = 30
-50 + 2 * F = 30
2 * F = 30 + 50
F = 40.
If 15 females are absent, then number of males will be twice
that of females.
40 – 15 = 25.
50 = 2 * 25. Confirmed.
If also 45 males were absent, then female strength would be
5 times that of males.
Female strength is 25 due to the 15 females being absent.
50 – 45 = 5.
25 = 5 * 5. Confirmed.
Ques:- If the numbers from 1 to 24, which are divisible by 2 are arranged in descending order, which number will be at the 8th place from the bottom?
A. 18
B. 16
C. 12
D. 10
Recent Answer : Added by Ferro On 2022-11-18 16:02:49:
1 through 24, divisible by 2 in descending order.
That leaves you with:
24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2
8th place FROM the bottom means your answer will be 16.
Ques:- Find out the wrong number in each sequence:
8, 13, 21, 32, 47, 63, 83
A. 32
B. 47
C. 63
D. 83
Recent Answer : Added by A.Madhav On 2022-01-08 16:06:20:
47 is answer by consecutive adding of
8+5=13
13+8=21
21+11=32
32+14=46
46+17=63
Ques:- Describe red color to a blind person
Ques:- If Atul finds that he is twelfth from the right in a line of boys and fourth from the left, how many boys should be added to the line such that there are 28 boys in the line ?
Ques:- Have you consider starting your own business?
Ques:- On cutting which solid parabola would be generated
Recent Answer : Added by Admin On 2020-05-17 12:01:12:
A parabola is obtained as the intersection of a cone with a
plane
Ques:- What are your hobbies? or What are you passionate about?
Recent Answer : Added by DK BOSS On 2021-07-21 15:26:03:
“One of my hobbies is playing club sports. … Playing sports is my favorite pastime and my hobby because it’s not just the games I love, but also the socializing part that comes with it. I love to meet new people and go to new places for tournaments.”
Ques:- The fraction EVE/DID = 0,TALKTALKTALKTALK… is a normal fraction that can also be written as a recurring decimal. Which fraction is this (equal letters are equal ciphers)?
Ques:- What is Form-iv
Recent Answer : Added by DK BOSS On 2021-07-21 15:26:27:
Form IV is the register of receipt and issue of raw materials which. With the replacement of private records in lieu of statutory records, no separate Form V is required provided you maintain private accounts for receipt, issue and closing stock of raw materials.
Ques:- Two pipes can fill a tank in 10 and 12 hours respectively while third pipe will make the tank empty in 20 hours. If all three pipes operate simultaneously, in how many hours the tank will be filled ?
Recent Answer : Added by Admin On 2020-05-17 12:01:50:
1/10 + 1/12 -1/20 = 15/2 i.e 7.5 h means 7 h & 30 min
Ques:- What u say as experience(Interview) “TELL ME ABOUT UR SELf”?As a Fresher(interview) What u Say?
Ques:- What types of math do you use? Re: Calculus, Algebra, Fractions?
Ques:- Given a rectangular (cuboid for the puritans) cake with a rectangular piece removed (any size or orientation), how would you cut the remainder of the cake into two equal halves with one straight cut of a knife?
Recent Answer : Added by John Paul On 2021-05-06 12:41:09:
Cut it horizontally so both can have equal share and same in shape.
Ques:- What about yourself? What is your role?
Ques:- Is it possible 2 invent electricity from lightening?
Ques:- When was the last time that you volunteered to expand your knowledge at work, as opposed to being directed to do so?
Ques:- What was the product and how far you know about your previous company product?
Ques:- Would you like to watch a movie or a match ?
Ques:- How should a profit of Rs.450 be divided between two partners, one of whom has contributed Rs.1200 for 5 months and the other Rs.750 for 4 months?
A. 1 : 1
B. 1 : 2
C. 1 : 3
D. 2 : 1
Recent Answer : Added by Suraj Prasad On 2022-05-17 08:56:56:
1200*5 : 750*4
6000:3000
2:1
Ques:- Let D be the set of all points in the real plane such that |x| + |y| <= 1,where |x| (respectively |y|) denotes the absolute value of x (respectively y).Prove that amongst every 5 points in D, there exist two points whose distancefrom one another is at mos
Ques:- Why have you been out of work so long, and how many others were laid off?
Ques:- What would you say to your boss if he?s crazy about an idea, but you think it stinks
Ques:- What is the difference between you and the person at the post?
Ques:- Are you ready to work at night shift?
Ques:- A cube of side 4cm is painted with colors red,blue,green in such a way that opposite sides are painted in the same colour . this cube is now cut into 64 cubes of equal size .then 1) how many have atleast two sides painted in different colours.2) how many cubes have only one side painted.3) how many cubes have no side painted4) how many have exactly one side not painted.
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional
Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
suppose
pipe:
A -30 hours A’s effeciency (60/30) =2
60( lcm of 30 and 20)
B- 20 hours B’s effeciency (60/20)=3
time taken by both to fill = 60/5 =12 as given in question (effeciencies of both a+b =2+3=5)
time taken by faster pipe i.e b = 60/3 =20