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Take this question as challange --> "Candle 'A' takes just
four hours to burn it completely and candle 'B'
takes 2 hrs. The girth of candle 'A' is just double of
candle 'B' with the same height. If Ram lit both the
candles in the same time and after how long time the length
of Candle 'B' would be just half of candle 'A'?
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Answer / atul
If both candles are of height x.
Suppose both candles were burnt for t hrs.
First one can burn for 4 hrs.
First one can burn for x/4 in 1 hr.
First one can burn for t*x/4 in t hr.
Balance = (x-t*x/4)
second one can burn in 2 hrs.
second one can burn in x/2 in 1 hr
Second one can burn for t*x/2 in t hr.
Balance = (x-t*x/2)
as per given condition
Balance = (x-t*x/4) = 2*(x-t*x/2)
or
1-t/4 = 2-t
t-t/4 =1
3*t/4=1
so t= 4/3 hrs
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / sheeba manuel
Since both the candles are of the same height, and
candle B takes 2 hours to burn fully means, the time
taken for candle B to be just half of candle
A is 1 hour. (Half of candle A = half of candle B,
b'cos they have the same height)
Therefore answer is 1 hour
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / amar jeet singh
not possible because they are burnt at the same time
| Is This Answer Correct ? | 0 Yes | 6 No |
plz send me the sbi clerks previous question paper
Five racing drivers, Alan, Bob, Chris, Don, and Eugene, enter into a contest that consists of 6 races. The results of all six races are listed below: Bob always finishes ahead of Chris. Alan finishes either first or last. Eugene finishes either first or last. There are no ties in any race. Every driver finishes each race. In each race, two points are awarded for a fifth place finish, four points for fourth, six points for third, eight points for second, and ten points for first. If Eugene finishes two places ahead of Chris in the first race, all of the following will be true EXCEPT: a) Bob finishes ahead of Don. b) Chris finishes two places ahead of Alan. c) Don finishes fourth. d) Bob finishes immediately behind Eugene. e) Chris finishes ahead of Bob. 2) Five racing drivers, Alan, Bob, Chris, Don, and Eugene, enter into a contest that consists of 6 races. The results of all six races are listed below: Bob always finishes ahead of Chris. Alan finishes either first or last. Eugene finishes either first or last. There are no ties in any race. Every driver finishes each race. In each race, two points are awarded for a fifth place finish, four points for fourth, six points for third, eight points for second, and ten points for first. If Don finishes third in the third race, which of the following must be true of that race? a) Alan finishes first. b) Eugene finishes first. c) Bob finishes second. d) Chris finishes second. e) Alan finishes fifth. 3) Five racing drivers, Alan, Bob, Chris, Don, and Eugene, enter into a contest that consists of 6 races. The results of all six races are listed below: Bob always finishes ahead of Chris. Alan finishes either first or last. Eugene finishes either first or last. There are no ties in any race. Every driver finishes each race. In each race, two points are awarded for a fifth place finish, four points for fourth, six points for third, eight points for second, and ten points for first. If Eugene's total for the six races is 36 points, which of the following must be true? a) Bob's total is more than 36 points. b) Chris's total is more than 36 points. c) Alan's total is 36 points. d) Don's total is less than 36 points. e) Don's total is 36 points. 4) Five racing drivers, Alan, Bob, Chris, Don, and Eugene, enter into a contest that consists of 6 races. The results of all six races are listed below: Bob always finishes ahead of Chris. Alan finishes either first or last. Eugene finishes either first or last. There are no ties in any race. Every driver finishes each race. In each race, two points are awarded for a fifth place finish, four points for fourth, six points for third, eight points for second, and ten points for first. If Alan finishes first only once, and Don finishes second exactly twice, the lowest total number of points that Bob can earn in the race is: a) 32 points. b) 38 points. c) 40 points. d) 44 points. e) 48 points. 5) Five racing drivers, Alan, Bob, Chris, Don, and Eugene, enter into a contest that consists of 6 races. The results of all six races are listed below: Bob always finishes ahead of Chris. Alan finishes either first or last. Eugene finishes either first or last. There are no ties in any race. Every driver finishes each race. In each race, two points are awarded for a fifth place finish, four points for fourth, six points for third, eight points for second, and ten points for first. If Alan finishes first in four races, which of the following could earn a total of fewer than 26 points in the six races? a) Bob only. b) Chris only. c) Don only. d) Eugene of Chris. e) Don or Chris. 6) Five racing drivers, Alan, Bob, Chris, Don, and Eugene, enter into a contest that consists of 6 races. The results of all six races are listed below: Bob always finishes ahead of Chris. Alan finishes either first or last. Eugene finishes either first or last. There are no ties in any race. Every driver finishes each race. In each race, two points are awarded for a fifth place finish, four points for fourth, six points for third, eight points for second, and ten points for first. If Frank enters the third race and finishes behind Chris and Don, which of the following must be true of that race? a) Eugene finishes first. b) Alan finishes sixth. c) Don finishes second. d) Frank finishes fifth. e) Chris finishes third.
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