Ques:- P and Q together can do a work in 6 days. If P alone can do it in 15 days. In how many days can Q alone do it?
Recent Answer : Added by Nishara Pathirana On 2023-04-18 07:32:50:
Assume Q can do the work alone in Q days:
work of a day by both P and Q =>
(1/15) + (1/Q ) = 1/6
solving this Q = 10.
Ques:- Two trains are moving in the same direction at 72 kmph and 36 kmph. The faster train crosses a man in the slower train in 27 seconds. Find the length of the faster train?
Recent Answer : Added by Atif On 2022-12-05 16:13:36:
10 x 27=270
Ques:- Why do you want this position?
Ques:- The least number which when divided by 8, 12 and 16, leave in each remainder 3, is?
Recent Answer : Added by Aashish On 2022-08-14 16:25:42:
LCM=48
Then add remainder 3
ans =51
Ques:- There is a log A having weight 30kgs. The thickness of the log is twice as another log B. And log A is half short as B. What is the weight of B?
Ques:- Tell me something about common wealth games
Ques:- There is a 50m long army platoon marching ahead. The last person in the platoon wants to give a letter to the first person leading the platoon. So while the platoon is marching he runs ahead, reaches the first person and hands over the letter to him and without stopping he runs and comes back to his original position. In the mean time the whole platoon has moved ahead by 50m. The question is how much distance did the last person cover in that time. Assuming that he ran the whole distance with uniform speed.
Recent Answer : Added by Admin On 2020-05-17 12:00:37:
The last person covered 120.71 meters.
It is given that the platoon and the last person moved with
uniform speed. Also, they both moved for the identical
amount of time. Hence, the ratio of the distance they
covered – while person moving forward and backword – are
equal.
Let’s assume that when the last person reached the first
person, the platoon moved X meters forward.
Thus, while moving forward the last person moved (50+X)
meters whereas the platoon moved X meters.
Similarly, while moving back the last person moved [50-(50-
X)] X meters whereas the platoon moved (50-X) meters.
Now, as the ratios are equal,
(50+X)/X = X/(50-X)
(50+X)*(50-X) = X*X
Solving, X=35.355 meters
Thus, total distance covered by the last person
= (50+X) + X
= 2*X + 50
= 2*(35.355) + 50
= 120.71 meters
Note that at first glance, one might think that the total
distance covered by the last person is 100 meters, as he
ran the total lenght of the platoon (50 meters) twice.
TRUE, but that’s the relative distance covered by the last
person i.e. assuming that the platoon is stationary.
Ques:- What can six men do at a time which six women cant do?
Recent Answer : Added by Admin On 2020-05-17 12:04:27:
Six men can at a time put mangala sutra (marriage) to their
spouses where six women cant do
Ques:- Why you chose canada ?
Ques:- Do you know what this company is into?
Ques:- Find the number WXYZ divisible by 36? i)let the digits be5,4,3,6 ?not in that order ii)sum of last two digits is 9 iii) sum of middle two digits is 7
Recent Answer : Added by Admin On 2020-05-17 12:02:19:
5436
Ques:- A teacher is writing on a blackboard and we want to pass all the information on the blackboard over a low-bandwidth network in real-time. How do we do it.
Ques:- For the following, find the next term in the series1. 6, 24, 60,120, 210
Recent Answer : Added by LeoOooO On 2022-08-14 16:25:36:
Ques:- Two trains of equal lengths take 10 sec and 15 sec respectively to cross a telegraph post. If the length of each train be 120 m, in what time will they cross other travelling in opposite direction?
Recent Answer : Added by Durgadevi A On 2022-09-18 08:59:14:
12
Ques:- What do you think about The President?
Ques:- Family Members Working?
Ques:- Why do you want to work for us or our company? or Why do you want this job?
Ques:- 3 persons started placementpapers with a capital of Rs.3000 . B invest Rs.600 less than A, C invest Rs.300 less than B. Then what is the share amount of B in a profit of Rs.886 ?
Recent Answer : Added by Admin On 2020-05-17 12:04:24:
Rs.265.80
Ques:- If u will be the principal of a school what will u can dobest for school?
Ques:- Find the greatest number which is such that when 697, 909 and 1227 are divided by it, the remainders are all the same?
Recent Answer : Added by Kavisha Chintamani On 2021-09-14 15:41:40:
3
Ques:- What about your family
Ques:- if 4 circles of equal radius are drawn with vertices of a square as the centre , the side of the square being 7 cm, find the area of the circles outside the square?
Recent Answer : Added by Uday On 2022-03-11 17:00:31:
190.85
Ques:- Have you ever been applied for any US VISA? If yes when and what type?
Ques:- How did you come to know about this opportunity?
Ques:- After working for 6 days, Ashok finds that only 1/3 rd of the work has been done. He employs Ravi who is 60% as efficient as Ashok. How many days more would Ravi take to complete the work?
Ques:- Perimeter of the back wheel = 9 feet, front wheel = 7 feet on a certain distance, the front wheel gets 10 revolutions more than the back wheel .What is the distance?
Recent Answer : Added by VSEC_me On 2022-08-14 16:34:00:
Let the total rotations be x:
So the distance covered by both the wheels will be same,
9 * x = 7 * (x + 10)
x = 35 rotations
distance travelled = 9 * 35 = 7 * (35 + 10) = 315 feet
Ques:- A car covers a distance of 624 km in 6 ½ hours. Evaluate its speed?
Recent Answer : Added by BRIAN On 2021-10-07 15:41:45:
S=D/T
S=624KM/6.5HRS
S=96KM/HR
Ques:- Imagine you are standing in front of a mirror, facing it. Raise your left hand. Raise your right hand. Look at your reflection. When you raise your left hand your reflection raises what appears to be his right hand. But when you tilt your head up, your reflection does too, and does not appear to tilt his/her head down. Why is it that the mirror appears to reverse left and right, but not up and down
Recent Answer : Added by DK BOSS On 2021-07-30 16:27:07:
The definition of left and right depends on the observer and
is reversed when facing the opposite direction. The
definition of up and down does not depend on the orientation
of the observer.
Assume Q can do the work alone in Q days:
work of a day by both P and Q =>
(1/15) + (1/Q ) = 1/6
solving this Q = 10.