Ques:- A positive number when decreased by 2 is equal to 15 times the reciprocal of the number. What is the number ?
Recent Answer : Added by Abhi Chatterjee On 2022-01-08 16:05:35:
Let the number be x.
So x-2 =15/x, or
x^2–2x-15=0, or
(x-5)(x+3)=0
Hence x = 5 or -3.
Check: When x=5, 5–2=3 which is 15/5=3.
When x=-3, -3–2=-5 which is 15/-3=-5.
The number is 5 or -3.
Ques:- If a and b are mixed in 3:5 ration and b and c are mixed in 8:5 ration if the final mixture is 35 liters, find the amount of b?
A. 13.34
B. 15.73
C. 16.73
D. 9.45
E. 5.3
Ques:- You have given 3 ropes and one match box.Each rope burn in 30 min.How do you measure 52 and half min.?
Recent Answer : Added by Ashish Sankritya On 2021-09-22 16:56:16:
Burn Rope One first, it will burn in 30 mins.Mark 30 mins and at the end of 30 mins now burn second rope from both sides (15 mins it will take ),and simultaneously burn third and last rope until it is half left.30+15= 45 , Remaining time 7.5 mins.By this time last rope is burnt half ,and now burn it from both sides as well it will exhaust in 7.5 mins. 30+15+7.5=52.5 measured.
Ques:- A cylinder is 6 cms in diameter and 6 cms in height. If spheres of the same size are made from the material obtained, what is the diameter of each sphere?
Ques:- 1. A plane travels 695km with wind and 498km aginst the wind in same time.The speed of wind is 21km/hr. Find the speed of plane?
Recent Answer : Added by Admin On 2020-05-17 12:01:01:
127.179(app)
given distance of the train along the wind is 695
and againt the wind is 498
and time = distance/speed
as we know that time is equal in both the cases hence equate
695/s1=498/s2———–(1);
where s1=speed of the plane + speed of the wind
and s2=speed of the plane -speed of the wind
given that speed of the wind is 21k/h
s1=sp+21
s2=sp-21
substitu in eq 1
we get the answer as 27.17(app)
Ques:- How many cubes of edge 2 dm can be cut out of a meter cube?
Recent Answer : Added by SHRADDHA NANDKISHOR BANGARE On 2020-07-29 09:55:49:
8 cubes
Ques:- A gets 3 times as much money as B gets, B gets only Rs.25 more then what C gets. The three gets Rs.675 in all. Find the share of B?
Ques:- The ratio of the number of ladies to gents at a party was 1:2 but when 2 ladies and 2 gents left, the ratio became 1:3. How many people were at the party originally?
Recent Answer : Added by MANISHA KALWAR On 2022-01-08 16:07:02:
12
Ques:- A tank is filled in 5 hours by three pipes X, Y and Z. The pipe Z is twice as fast as Y and Y is twice as fast as X. How much time will pipe X alone take to fill the tank?
Recent Answer : Added by sahana u k On 2022-04-02 07:00:59:
35 hours
Ques:- Least perfect square number, exactly divisible by 21, 36 and 56 is?
Ques:- There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number?
Recent Answer : Added by GURUKISHORE On 2021-09-18 16:12:09:
13
Ques:- What would you do for us? What can you do for us thatsomeone else can't?
Recent Answer : Added by Kanishk Rathore On 2022-08-14 16:33:55:
Creative mind and innovative ideas is what I can offer to you. Please have a look at my work portfolio. I do not copy anyone’s work, I do not try to imitate the work of other creators. Gaining my inspiration from everyday life
Ques:- Navin walked 20 metres towards the East took a left turn and walked 10 metres and again took a left turn and walked 20metres. How far is he from his starting position?
A. 10 metres
B. 50 metres
C. 40 metres
D. 30 metres
E. None of these
Recent Answer : Added by Admin On 2020-05-17 12:03:42:
( a ) 10 metres
Ques:- An officer was appointed on maximum daily wages on contract money of Rs. 4956. But on being absent for some days, he was paid only Rs. 3894. For how many days was he absent?
Ques:- Why u left yor last job
Ques:- You are preparing for mba then why job???????
Ques:- A merchant has 140 litres, 260 litres, 320 litres of three kinds of oil. He wants to sell the oil by filling the three kinds separately in tins of equal volume. The volume of such a tin will be
A. 13 litres
B. 16 litres
C. 20 litres
D. 70 litres
Recent Answer : Added by anonymous On 2022-03-09 16:38:05:
20 litres
cos
140 280 320 liters oil are exactly fittable in 20 litred tin
Ques:- If x + 8y = 20 and x = -3y, then y =
Recent Answer : Added by David Evans Gyamfi On 2021-09-26 15:12:42:
x+8y=20, x=-3y
(-3y)+8y=20
5y=20
y=4
The answer for y is 4
Ques:- Where would you like to stand after a period of 5 years?
Ques:- You have a car mileage 1km per liter, you have 3 thousand liters of petrol and have to cover 3000kms and give a way to cover that distance so that you can have some petrol remaining when you reached.
Ques:- Anand and Deepak started a business investing Rs. 22,500 and Rs. 35,000 respectively. Out of a total profit of Rs. 13,800, Deepak’s share is:
Recent Answer : Added by Sachin On 2022-03-19 16:02:14:
8400
Ques:- What is Goal.
Ques:- The number of sequences in which 7 players can throw a ball, so that the youngest player may not be the last is -.
Ques:- 15 men take 21 days of 8 hours each to do a piece of work. How many days of 6 hours each would 21 women take to do the same. If 3 women do as much work as 2 men?
Ques:- Tell Me About Your Self & Family Background.
Ques:- Three men A, B, C plays Cards. If one loses the game he have to give Rs.3. If he wins the game he will gain Rs.6. If A has won 3 Games, B loses Rs.3, C wins Rs.12.What is the total no. of games played?
Recent Answer : Added by Admin On 2020-05-17 12:01:57:
8 games They played
A own 3 games = 18 Rs
B loss 3 Rs and own 1 games i,e 9(A own 3 Games)-6(B own
1 game)=3
c own 12 Rs and loss 4 games(A own 3+b own 1) and own 4
games i.e 24(own)-12(loss)
so totally A own 3 games
B own 1 game
c own 4 games
=8
Ques:- A man has age in years equal to his daughters age in months and daughter age is equals to his grand daughter age in weeks and her age in weeks total age of 3 members is given 91.find out the mans age
Ques:- Total expreince ,last jobs & educational qualification.
Ques:- Explain how you overcame a major obstacle?
Ques:- A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is?
Let the number be x.
So x-2 =15/x, or
x^2–2x-15=0, or
(x-5)(x+3)=0
Hence x = 5 or -3.
Check: When x=5, 5–2=3 which is 15/5=3.
When x=-3, -3–2=-5 which is 15/-3=-5.
The number is 5 or -3.