Ques:- A train of length 150 m takes 40.5 seconds to cross a tunnel of length of 300 m. The speed of the train (in km/hr) is
A. 13.33
B. 26.67
C. 38.32
D. 40
Recent Answer : Added by memo On 2023-01-10 14:35:10:
Since the total train length passed the tunnel so the distance would be the length of train added to the tunnel legth
D=150+300=450 mt.
speed = distance/time
speed = 450/(40.5/3600)
speed =40,000 mt/sec
Ques:- Consider the following statements about natural numbers
(1) There exists a smaller natural number.
(2) There exists a largest natural number.
(3) Between two natural numbers, there is always a natural number.
Which of the above statement is/are correct?
A. None
B. Only 1
C. 1 and 2
D. 2 and 3
Recent Answer : Added by narendra On 2022-09-18 09:03:05:
B
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Ques:- A can finish a piece of work in 5 days. B can do it in 10 days. They work together for two days and then A goes away. In how many days will B finish the work?
Recent Answer : Added by Roopesh K p On 2021-06-15 17:06:48:
4 days
Ques:- A garrison of 400 men had a provision for 31 days. After 28 days 280 persons re-enforcement leave the garrison. Find the number of days for which the remaining ration will be sufficient?
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:- How many numbers greater than 5000 can be formed with four of the digits 3, 4, 5, 6, 7 where no digit can be repeated
Recent Answer : Added by Admin On 2022-09-29 17:47:29:
When none of the digits are repeated:
The hundred’s place can be filled by any of the digits: 2, 3, 5, 6, 7 or 8 except the one which has already been used at the thousand’s place, so it can be filled in 5 ways.
Similarly tens’ place can be filled in 4 ways: only those 4 numbers which have not been use either at hundred’s or thousand’s place.
Unit’s place can be filled in only 3 ways. So, total number of nos. Possible =4×5×4×3= 240
Ques:- 125 : 343 :: 343 : __
Recent Answer : Added by Shweta Rathore On 2023-04-18 12:08:58:
FYI
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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:- A single discount equivalent to the discount series of 20%, 10% and 5% is?
Recent Answer : Added by Kunal gupta On 2021-11-09 15:53:42:
Ques:- A 6 inch length cylindrical through hole is drilled through the center of sphere, what will be the remaining volume of sphere ?
In this question only one data is given ie., hole length - 6". In the question there is no mistake.
Find the answer.
Recent Answer : Added by Admin On 2020-05-17 12:05:14:
volume of a sphere is 4/3 * pi * r^3
by drilling a hole 6 inches long the volume of the sphere is
not affected bcos the hole is a 1 dimension quantity..(say a
straight line) n so it does not have any value w.r.t volume…
hence the volume of the sphere does not change..
Ques:- can anybody solve this series 0,6,24,60,120,210,?,? please give answer with the solution
Recent Answer : Added by m On 2022-09-28 17:42:51:
copy cat
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Ques:- A train 150 m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?
Recent Answer : Added by Sanjeev Singh kushvaha On 2021-08-07 04:11:11:
350m
Ques:- The least number which when add 3 to it, completely divided 8, 12 and 18 is?
Recent Answer : Added by Admin On 2022-09-29 15:47:25:
The correct Answer is 69
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Ques:- If a=2/3b , b=2/3c, and c=2/3d what part of d is b/(a) 8/27(b) 4/9(c) 2/3(d) 75%(e) 4/3
Ques:- Tell us something about your past working experience?
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Ques:- a survey of 250 ppl found that 223 have tatoos,178 wore leather,158 own harry davidson,151 wore tatoo and leather,119 wore leather and own harley,142 have tatoo and a harley, 103 have all the 3 items.draw a venn diagram n explain how many
A. had only harley davidson?
B. had atleast 2 of the 3 items?
C. had none of the items?
D. had tatoos or were wearing leather?
E. were not wearing leather but did have tatoos and did own a harley?
Recent Answer : Added by Admin On 2020-05-17 12:05:24:
a)0
b)206
c)0
d)250
e)39
f)92
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Ques:- There are 100 men and 100 women on the dance floor. They want to dance witheach other. Then which of the following statements is always true:a) There are 2 men who danced with equal no. of women b) There are 2 women who danced with equal no. of men
Recent Answer : Added by bhaskar On 2021-08-04 15:54:14:
both a and b is correct
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.
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Since the total train length passed the tunnel so the distance would be the length of train added to the tunnel legth
D=150+300=450 mt.
speed = distance/time
speed = 450/(40.5/3600)
speed =40,000 mt/sec