Ques:- T, U, V are 3 friends digging groups in fields. If T & U can complete i groove in 4 days &, U & V can complete 1 groove in 3 days & V & T can complete in 2 days. Find how many days each takes to complete 1 groove individually.
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Ques:- a train is moving at speed of 25 kmph , another train moving the same direction at a speed of 49 kmph crossed a man in the first train in 10 sec ? wht is the length of the second train ?
Recent Answer : Added by Admin On 2020-05-17 12:04:15:
Relative velocity of trains = 49kmph -25 kmph = 24kmph
=6.67m/s
Time taken to cross the first train = 10 sec
Length of the second train = Relative Velocity * Time taken
to cross the first Train = 6.67 *10 = 66.7 metres
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Ques:- If the length of the train is 100m and its speed is 60km/h and another length of the train is 80km and its speed is 50km then its travelling in opposite direction. Find out the time of crossing each other(m/s)?
Recent Answer : Added by Syed Faizan On 2021-12-13 17:58:35:
43.69
Because the total distance will be =100+80000m=80100m. Thus two train coming towards, so the speed will be increase. speed will be =60+50=110km/h, The time of crossing will be 43.69 minutes.
Ques:- A contribution of Rs. 500 was raised from 500 people. The fee was as follows: Men: Rs.3.00 each Women: Rs. 2.00 each Children: 0.48 each. If number of women is more than number of men, how many children are there?
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Ques:- A letter lock consists of three rings each marked with six different letters. The number of distinct unsuccessful attempts to open the lock is at the most -.
Ques:- If a man can cover 12 metres in one second, how many kilometres can he cover in 3 hours 45 minutes?
Recent Answer : Added by Sohini Mitra On 2022-09-02 17:02:39:
3hour 45 min = 13500 sec
In 1 sec he covers = 12 m
In 13500 sec he covers = 12×13500 m = (12×13500)/1000 km = 162 km
Recent Answer : Added by Tanmoy Dey On 2022-09-15 16:39:01:
16
Ques:- An article is bought for Rs.600 and sold for Rs.500, find the loss percent?
Ques:- If water is called food, food is called drink, drink is called blue, blue is called red, red is called white and white is called brown, then what is the colour of “blood” ?
A. Blue
B. Red
C. Brown
D. White
E. Drink
Recent Answer : Added by Manga Ravikumar On 2022-03-09 16:45:58:
red
Ques:- In 1978, a kg of paper was sold at Rs25/-. I f the paper rate increases at 1.5% more than inflation rate which is of 6.5% a year , then what wil be the cost of a kg of paper after 2 years? a)29.12 (b) 29.72 (c) 30.12 (d) 32.65 (e) none of these
Recent Answer : Added by Admin On 2020-05-17 12:00:04:
(a) 29.12 (actual)
first year rate of paper (inflation rate) : 25 + 25 *
6.5/100 = 26.625
paper rate in first year is 1.5 % more . ..thr4
inflated cost in 1 yr = 26.625 + 1.5 / 100 * 26.625 =
27.024.
second year : 27.024 + 27.024 * 6.5 / 100 = 28.78
paper cost : 1.5 /100 * 28.78 + 28.78 = 29.12 ( approx..)
Ques:- A circle is inscribed in a Triangle of side 6cm. What is the area of circle?
Recent Answer : Added by ankita On 2022-08-14 16:34:24:
27 root 3
Ques:- A is thrice as efficient as B and is, therefore, able to finish a piece of work 10 days earlier than B. In how many days A and B will finish it together?
Recent Answer : Added by Abhi Chatterjee On 2022-01-08 16:05:10:
Let n be the number of days it takes A and B, working together, to finish. And we know B=A+10 and B=3A, so:
3A=A+10
2A=10
A=5
Then B=15
So:
1/A + 1/B=1/n where n is the total amount of days. So:
1/5 + 1/15=1/n
3n+n=15
n=15/4 days
Ques:- Perimeter of the back wheel = 9 feet, front wheel = 7 feet on a certain distance the front wheel gets 10 revolutions more than back wheel . what is the distance?
Recent Answer : Added by Admin On 2020-05-17 11:59:15:
If n = no. of revolutions for back wheel
9n = 7n + 10*7
n=315
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Ques:- The average between a two digit number and the number obtained by interchanging the digits is 9. What is the difference between the two digits of the number? (a) 8 (b) 2 (c) 5 (d) Cannot be determined (e) None of these
Recent Answer : Added by DK BOSS On 2021-07-15 08:38:59:
( d ) Cannot be determined
Ques:- Why are you leaving your current employer?
Ques:- The speed of a train is 90 kmph. What is the distance covered by it in 10 minutes?
Recent Answer : Added by Sahana HP On 2021-10-12 12:52:44:
Distance =speed ×time
Speed =90kmph
90km take 60min time to reach
In 10min the distance covered =?
D=90×10/60
900/60
D=15
Ques:- The average of five results is 46 and that of the first four is 45. The fifth result is?
Recent Answer : Added by Lani On 2021-09-28 17:28:16:
x- sum of first 4 values
y – 5th value
x/4 = 45
x=45*4=180
(x+y)/5 = 46
(180+y)/5=46
180+y=230
y=50
Ques:- Describe a time when you took extra effort to make sure the person with whom you were communicating with had really understood your point. How did you do this?
Ques:- A fly is there 1 feet below the ceiling right across a wall length is 30m at equal distance from both the ends. There is a spider 1 feet above floor right across the long wall equidistant from both the ends. If the width of the room is 12m and 12m, what distance is to be traveled by the spider to catch the fly, if it takes the shortest path
Recent Answer : Added by Mishy On 2022-03-09 16:36:29:
42m
Ques:- 9 years ago I was five times as old as my eldest son Today I am 3 times his age. HOW old am I now?
Recent Answer : Added by Aftab On 2022-11-09 16:47:00:
=> 3s = d
=> 5(s-9) = d
therefore
5s-45=3s
2s = 45
s=22.5
hence
d= 67.5
Ques:- Tell me the one thing that you like about our company?
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Relative velocity of trains = 49kmph -25 kmph = 24kmph
=6.67m/s
Time taken to cross the first train = 10 sec
Length of the second train = Relative Velocity * Time taken
to cross the first Train = 6.67 *10 = 66.7 metres