Ques:- There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles?
Recent Answer : Added by Naru Mani Chandan On 2022-03-18 09:18:12:
3 hours ago.
Thin candle melts 3/4 in 3 hours leaving 1/4
Where as in the same time thick candle melts 3/6 leaving 3/6 which is 1/2. Now thick candle is exactly twice than the thin candle.
Or via modeling:
We need to find time at which the length of the thin candle is half the thick candle. Let x be the time. Thin candle melts at 1/4 an hour and thick candle melts at 1/6 an hour. In x hours they melt at x/4 and x/6 respectively. What’s left will be 1 – x/4 and 1 – x/6. We need to find x at which :
2 * (1 – (x/4)) = 1 – (x/6)
This equation results in x = 3
Ques:- What is the abbreviation of NACCO, OPEAC, NEWS?
Recent Answer : Added by mia tan On 2022-09-25 16:02:44:
NON
Ques:- Three cards are drawn at random from an ordinary pack of cards. Find the probability that they will consist of a king, a queen and an ace.
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Ques:- Ready to relocate anywhere across the country
Ques:- How would you describe yourself?
Ques:- Every year an amount increases by 1/8th of itself. How much will it be after two years if its present value is Rs.64000?
Recent Answer : Added by Shailendra Gurjar On 2022-09-28 17:42:47:
₹1 today increases to (1+1/8) = 9/8 after 1year.
After 2 years it increases to 9/8 of 9/8 = (9/8)^2 =81/64 times.
Hence ₹64000 increase to 64000×81/64 =₹81000
Ques:- If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage.
Recent Answer : Added by Anmol On 2021-06-15 17:06:52:
If discount is 25%
Profit 25%
If discount10%
Profit?
Suppose 100rs is price
25% discount make it 75
25%profit that means 75×100/125=60
Cp is 60
10 % discount make sp 90 profit is 30%
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Ques:- A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. What is the speed of the train ?
Recent Answer : Added by Swaleh Mohamed On 2022-08-14 16:45:53:
Length of train = 125Mtrs
Speed of man = 5Km/Hr
=(5*1000)/(1*3600)
=1.4M/s
Time taken for train to pass = 10s
Spd = D/T
Total Distance (Man distance+ Train Length)
#Distance covered by Man in 10s
D=Spd*T
= (1.4M/s*10s)
= 14Mtrs
#Train length = 125Mtrs
Total D = 14Mtrs + 125Mtrs
= 139Mtrs
Time taken = 10s
Sp = D/t
=139M/10s
=13.9M/s
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Ques:- Communication system
Ques:- WHAT IS UR VIEW ON SBI N SBS MERGER?
Ques:- How many cars are there in the USA?
Recent Answer : Added by Admin On 2020-05-17 12:01:36:
if it is for MIcrosoft Interview Question, I sure they will
give you the job if you answer, “Google it”.
Ques:- In your opinion, what is the most beautiful math equation ever derived?
Recent Answer : Added by Admin On 2020-05-17 12:01:49:
obvious
e^(i*pi) + 1 = 0
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Ques:- How many numbers up to 100 and 300 are divisible by 11?
Recent Answer : Added by Admin On 2022-09-29 15:21:15:
There are 18 numbers between 100 and 300 that are divisible by 11: 110, 121, 132, 143, 154, 165, 176, 187, 198, 209, 220, 231, 242, 253, 264, 275, 286, 297.
Ques:- Have you considered starting your own business?
Ques:- A train crosses a pole in 9 seconds at the speed of 60 km/hr ?Evaluate the lengthy of the train?
Recent Answer : Added by Akil On 2022-05-17 09:06:52:
150 m
Ques:- A 180 meter long train crosses a man standing on the platform in 6 sec. What is the speed of the train?
Recent Answer : Added by Roopesh On 2021-06-15 17:06:46:
Which means the train will travel 180 m in 6 seconds so
We need to convert this into minutes
6×10 = 60s= 1 minute.
180×10 = 1800 m train will travel 1.8 km in 1 minute.
1.8×60 = 108 kmph
Ques:- Mr. and Mrs. Aye and Mr. and Mrs. Bee competed in a chess tournament.Of the three games played:a)In only the first game werethe two players married to each other.b)The men won two games and the women won one game.c)The Ayes won more games than the Bees.d)Anyone who lost game did not play the subsequent game.Who did not lose a game?
Recent Answer : Added by Jisha Koshy On 2022-09-15 16:37:07:
Option c
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Ques:- City A population is 68000, decreasing at a rate of 80 per year City B having population 42000 increasing at a rate of 120 per Year. In how many years both the cities will have same population
Recent Answer : Added by Admin On 2020-05-17 11:59:22:
130 years
Ques:- A fathers age is reverse of sons age. One year back fathers age was twice of sons age. What is the fathers current age?
Recent Answer : Added by Binit Bhagat On 2021-09-04 17:14:22:
73.
one year back father = 72 and son = 36.
Ques:- What is the maximum number of half-pint bottles of cream that can be filled with a 4-gallon can of cream(2 pt.=1 qt. and 4 qt.=1 gal)
Recent Answer : Added by Ashish On 2021-09-18 16:12:08:
64
Ques:- 2/3 of corckery(plates) are broken, 1/2 have someother thing(handle) broken , 1/4 are both broken and handle broken. Ultimately only 2 pieces of corckery were without any defect. How many crockery were there in total.
Recent Answer : Added by Admin On 2020-05-17 12:02:29:
let no of total crockery =x
2x/3 crockery broken
x/2 handle broken
x/4 both brocken
2x/3+x/2-x/4 = no of total broken(crockery or handle)
=11x/12
unbroken =x-11x/12=x/12
x/12=2(given in question)
x=24
3 hours ago.
Thin candle melts 3/4 in 3 hours leaving 1/4
Where as in the same time thick candle melts 3/6 leaving 3/6 which is 1/2. Now thick candle is exactly twice than the thin candle.
Or via modeling:
We need to find time at which the length of the thin candle is half the thick candle. Let x be the time. Thin candle melts at 1/4 an hour and thick candle melts at 1/6 an hour. In x hours they melt at x/4 and x/6 respectively. What’s left will be 1 – x/4 and 1 – x/6. We need to find x at which :
2 * (1 – (x/4)) = 1 – (x/6)
This equation results in x = 3