Ques:- A pipe fill a tank in 3hrs.another pipe fill that same tankin 2hrs.if both pipe inserted in tank to fill it how timw itwill take to fill?
Recent Answer : Added by MUGILARASU On 2022-09-15 16:39:02:
consider the tank capacity as 90 litres.
to fill the tank in 3 hrs first pipe must flow at a rate of 30 litres/hr
2nd pipe has to flow at a rate of 45 litres/hr
if two pipes are opened at a time the flow rate will become 75 litres/hr
90/75= 6/5 = 1.2= (i.e) 1hr and 12 minutes 1 1/5 hr
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Ques:- Please tell me what about your self?
Ques:- In a class of 60, where girls are twice that of boys, Kamal ranked seventeenth from the top. If there are 9 girls ahead of Kamal, how many boys are after him in rank ?
Recent Answer : Added by Selvakumar A On 2021-10-25 09:20:31:
boys= x
girls=2x
boys+girls= 60
x+2x=60
x=60/3
x=20
kamal=17th rank
9 girls are ahead of kamal
17-9=8
20-8=12 boys are after kamal’s rank
Ques:- in a mixture R is 2 parts and S is 1 part. In order to make S to 25% of the mixture how r is needed ? give the steps plz…..
Recent Answer : Added by Admin On 2020-05-17 12:04:05:
Its very simple..
consider the fraction of s in the mixture = 1/3
So if we add one more R the the fraction wil be = 1/4
Automaticaly S becomes 25% of the mixture
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Ques:- What is the missing number in the series 2, 6, 12, 20, 30, ..?
A. 72
B. 42
C. 52
D. 62
E. 56
Recent Answer : Added by ANTONIS AJAY SOLOMON On 2022-10-11 16:07:08:
The answer is 42
Ques:- Describe your school days
Ques:- What is your working area and why you left & how many years you work there?
Ques:- A, B, C hired a car for Rs.520 and used it for 7, 8 and 11 hours respectively. Hire charges paid by B were
A. Rs. 140
B. Rs. 150
C. Rs. 160
D. Rs. 180
Recent Answer : Added by Omodele On 2022-05-17 09:09:34:
A. Rs 140
7+8+11=26
B: 7/26*520= 140
Ques:- What is your contribution of the Branch?
Recent Answer : Added by Pallavi On 2022-04-02 06:59:53:
Very great things your doing
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Ques:- Generally earlier work related.
Ques:- A works thrice as much as B. If A takes 60 days less than B to do a work then find the number of days it would take to complete the work if both work together?
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Ques:- A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are drawn at random, what is the probability that at least one is green?
Ques:- A train 800 m long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 min, then the length of the tunnel is?
Recent Answer : Added by Admin On 2022-09-28 18:39:42:
Let length of tunnel is x meter
Distance = 800+x meter
Time = 1 minute = 60 seconds
Ques:- Can you name your work activities you do most well and most enjoy?
Ques:- How many kg of sugar costing Rs. 11.70/kg must be mixed with 24 kg of sugar costing Rs. 8.1/kg. So that there may be a gain of 15% by selling the mixture at 9/kg?
A. 6 kg
B. 7 kg
C. 8 kg
D. 10 kg
Recent Answer : Added by Admin On 2022-09-23 19:17:07:
C. 8 kg
Ques:- I normally like to ______________ on Sundays (please enter your
Ques:- If Log2 x – 5 Log x + 6 = 0, then what would the value / values of x be?
Ques:- Friday Dressing is a label of which Apparel Brand?
Ques:- What is the next number of this sequence 10,8,7,14,15,13,12,24,25,23?
Recent Answer : Added by MM On 2023-02-01 17:47:10:
22
Ques:- What is your febrate song and actors.
Ques:- Number of zeros in the product of the first 100 numbers?
Recent Answer : Added by Admin On 2022-09-28 19:16:12:
1×2×…100=100!
Number of zeros in product of n numbers =[5n]+[52n]+[53n]+…
Number of zeros in product of 100 numbers =[5100]+[52100]+[53100]
where [.] is greatest integer function
=[20]+[4]+[0.8]=20+4=24
Ques:- Find the 3 digit number. Third digit is square root of first digit. Second digit is sum of first and third digits. Find the number
Recent Answer : Added by Nathan Abebe On 2022-04-02 07:00:00:
264
Ques:- Which least number must be added to 1056 so that the sum is completely divisible by 23 ?
Ques:- “A soldier loses his way in a thick jungle. At random he walks from his camp but mathematically in an interesting fashion. First he walks one mile East then half mile to North. Then 1/4 mile to West, then 1/8 mile to South and so on making a loop.. Finally how far he is from his camp and in which direction. ..”
Recent Answer : Added by Harsh Shah On 2021-07-22 15:55:58:
Soldier have to move 0.75 miles to West and then 0.375 miles to South to reach the camp.
How:-
Firstly soldier moving 1 mile to East from camp and then 1/2 miles= 0.50 miles to North .
Then it is moving 1/4 miles =0.25 miles to west
And then 1/8 miles =0.125 miles to South
Now we just have to count the difference and minus the value of camp to East with the value of North to west = 1mile – 0.25miles(1/4) = 0.75 miles
Same case with north and south = 0.50 miles(1/2) – 0.125 miles(1/8) = 0.375 miles
Hence proves to return camp the soldier have to move 0.75 miles to west and 0.375 miles to south
Ques:- The edge of three cubes of metal is 3 dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?
consider the tank capacity as 90 litres.
to fill the tank in 3 hrs first pipe must flow at a rate of 30 litres/hr
2nd pipe has to flow at a rate of 45 litres/hr
if two pipes are opened at a time the flow rate will become 75 litres/hr
90/75= 6/5 = 1.2= (i.e) 1hr and 12 minutes 1 1/5 hr