Interested to Buy Any Domain ? << Click Here >> for more details...
Vipul was studying for his examinations and the lights went
off. It was around 1:00 AM. He lighted two uniform candles
of equal length but one thicker than the other. The thick
candle is supposed to last six hours and the thin one two
hours less. When he finally went to sleep, the thick candle
was twice as long as the thin one.
For how long did Vipul study in candle light?
- 13 Answers
- 40585 Views
- Cognizant, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / krishna kanth reddy
3 hours from 1A.M....That means upto early morning 4 A.M
| Is This Answer Correct ? | 58 Yes | 6 No |
Answer / rajesh
let the height of the candles be 4 ft
2 hr half of the thin candle lit now height 2 ft.
again 1 hr lit makes the thin candle 1 ft.
but the thick candle lasts 6 hr
in three hour it lits half of its height so 2 ft remaining
so the candles were lit three hours
till 4 am he used the candles
| Is This Answer Correct ? | 27 Yes | 1 No |
Answer / priyanshu gupta
let no. of hrs b x
it is given The thick candle is supposed to last six hours
and the thin one two hours less.
so 6-x=2(4-x)
6-x=8-2x
2x-x=8-6
x=2
so he studied 2 hrs in candle light.
| Is This Answer Correct ? | 18 Yes | 16 No |
Answer / sanjay sudheer
Both have the same length (i.e, say L in meters 'm')
Thick candle melting rate (L/6) of units m/hr
Thick candle melting rate (L/4) of units m/hr
Assume the time after which the given condition is satisfied (That is after 'h' hours)
[L- [(L/6)*h] ] = 2* [L- [(L/4)*h] Solve we will end up with 3hrs
h=3 hrs;
This is the condition for any variable length of the candle;
Try with candle lengths of for easy understanding (i.e., 4, 12, 24 etc) u will endup with same condition { thick candle is twice lengthy than the thin one}
| Is This Answer Correct ? | 4 Yes | 2 No |
Answer / vivek
IN response to above answer
What if we assume the height of the two candles to be 6 ft??
| Is This Answer Correct ? | 2 Yes | 3 No |
Answer / rohit solanki
Let both of their height be x.
For every hour thin will burn x/4 of x and thick will burn x/6 of x.
After 3 hrs remaining thin will be x - 3*x/4 = x/4 and
remaining thick will be x - 3*x/6 = x/2
Thus after 3 hrs thick will be twice of thin x/2 = 2(x/4)
hence solved.
| Is This Answer Correct ? | 0 Yes | 1 No |
what will the Next no. 10,20,30,68,__
7 Answers Apalya Technologies, EXL, Genpact, Schneider,
3 blocks are chosen randomly on a chessboard. What is the probability that they are in the same diagonal?
A farmer needs 8 gallons of water. He has only three unmared buckets, two 6 gallon and one 11 gallon bucket. How can he collect 8 gallons of water using three unmarked buckets? Provide solution with minimal water wastage.
You have 8 coins. 3 of them weigh x units, 3 y units, 1 a units and 1 b units. They are all mixed and look identical. You have to find the lightest coin in minimum number of weighing (balance)
Substitute digits for the letters to make the following addition problem true. W H O S E T E E T H A R E + A S ------------------- S W O R D S Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter H, no other letter can be 3 and all other H in the puzzle must be 3.
u use any operation solve this problem 45-45=45
Substitute digits for the letters to make the following subtraction problem true. S A N T A - C L A U S ----------------- X M A S Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter M, no other letter can be 3 and all other M in the puzzle must be 3.
? A is the father of two children - B and D who are of different sexes. ? C is B's spouse. ? E is the same sex as D. ? B and C have the two children - F who is the same sex as B and G who is the same sex as C. ? E's mother, H who is married to L, is the sister of D's mother, M. ? E and E's spouse, I have two children - J and K who are the same sex as I. Note that no persons have married more than once. Also, there are more number of females than males. Can you tell how many females are there?
one man driving a car in a lonely forest .. it was raining at that moment ...suddenly one of the car tyre got punchured...and he is having stephiny in his car ...he gets it and he tried to fix that stephiny...when he removes the bolts of punchred tire all are gone into mud...all bolts... fell into mud...and that bolts he never get...then, how can he reach safely to home... by driving his car..?
A frog starts climbing 15 feet wall. Each hour he climbs 3 feet and rests for 30 minutes. During rest, he slips back 2 feet. How many hours does the frog take to reach the top?
When a bottle full of honey was weighed, its weight was 1 kilogram. When the bottle was weighed with half the honey, its weight was 600 grams. What is the weight of the bottle?
Because cigars cannot be entirely smoked, a Bobo who collects cigar butts can make a cigar to smoke out of every 3 butts that he finds. Today, he has collected 27 cigar butts. How many cigars will he be able to smoke?
English 
