Coates group Interview Questions, Process, and Tips

Ques:- Two pipes X and Y can separately fill a cistern in 18 and 24 hours respectively. If they are turned on alternately for one hour each, how long will it take to fill the cistern?
Recent Answer : Added by Admin On 2022-09-28 17:08:06:

X filling rate is 1/18 or 4/72 per hour

Y filling rate is 1/24 or 3/72 per hour

Combined as a pair it’s 7/72 in a complete 2 hour alternating sequence

72+ 7/72 =10 sequences = 70/72 on 20 hours, The outstanding balance is just 2/72

So at 20.5 hours with X turn filling is 100% complete with 72/72

Answer: It will take 20.5 hours to completely fill this tank.

Analysis of measured filling process, from X = 42/72 share & from Y = 30/72 share

Ques:- Rajan got married 8 years ago. His present age is 6/5 times his age at the time of his marriage. Rajan’s sister was 10 years younger to him at the time of his marriage. The age of Rajan’s sister is:
Recent Answer : Added by Admin On 2022-09-29 18:35:16:

38 years

Let Rajan’s present age be x years. Then, his age at the time of marriage = (x – 8) years.

x = 65(x−8)

⇒5x=6x−48

⇒x=48 years

Rajan’s sister’s age at the time of his marriage = (x – 8) – 10 = (x – 18) = 30 years

∴ Rajan’s sister’s present age = (30 + 8) years = 38 years

Ques:- What are your academic achievements?
Ques:- If in a certain language, GAMBLE is coded as FBLCKF, how is FLOWER coded in the code ?
Recent Answer : Added by shubhangi Deore On 2022-08-14 16:41:53:

EMNXDS

Ques:- Family and other people
Ques:- What smallest number should be subtracted from 6708 so that it may be divided by 9?
A. 1
B. 2
C. 3
D. 4
Recent Answer : Added by Sneka A On 2022-08-14 16:35:53:

C)3

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 Childern: 0.48 each If number of women is more than number of men, how many childern are there?”
Ques:- Name one new/unique initiative of yours at your current organization
Ques:- About family background.
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.

Ques:- Why you wants to work with us which is far away from your home?
Ques:- A, B and C can do a work in 6 days, 8 days and 12 days respectively. In how many days can all three of them working together, complete the work?
Recent Answer : Added by Sam Guo On 2022-04-02 06:59:27:

3days

Ques:- The average age of a class is 15.8 years. The average age of boys in the class is 16.4 years while that of girls is 15.4 years. What is the ratio of boys to girls in the class?
Recent Answer : Added by Ketan On 2021-12-04 15:00:17:

2:3

Ques:- A train speeds past a pole in 15 sec and a platform 100 m long in 25 sec,find its length is?
Recent Answer : Added by Fatima On 2022-09-24 14:33:37:

It is assumed to be constant. Now, to cross past the pole, the train should cover a distance of x meters. Now, the time taken by the train to cross a platform of length 100 m is 25 seconds. Hence, the length of the train is 150 m.

Ques:- Find out the wrong number in the series:
15, 16, 34, 105, 424, 2124, 12576
A. 34
B. 105
C. 424
D. 2124
Recent Answer : Added by G S Dheeraj On 2022-08-14 16:33:59:

The series is 15, 16, 34, 105, 424, 2124, 12576
1) (15*1) + 1 = 16
2) (16*1) + 2 = 34
3) (34*3) + 3 = 105
4) (105*4) + 4 = 424
5) (424*5) + 5 = 2125
Clearly, they gave 2124 instead of 2125, so it is the wrong number in the series.

Ques:- UK Shift timings and salary
Ques:- There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles?
Recent Answer : Added by Naru Mani Chandan On 2022-03-18 09:18:12:

3 hours ago.

Thin candle melts 3/4 in 3 hours leaving 1/4
Where as in the same time thick candle melts 3/6 leaving 3/6 which is 1/2. Now thick candle is exactly twice than the thin candle.

Or via modeling:

We need to find time at which the length of the thin candle is half the thick candle. Let x be the time. Thin candle melts at 1/4 an hour and thick candle melts at 1/6 an hour. In x hours they melt at x/4 and x/6 respectively. What’s left will be 1 – x/4 and 1 – x/6. We need to find x at which :

2 * (1 – (x/4)) = 1 – (x/6)

This equation results in x = 3

Ques:- As aperson , how would u describe urself ?
Ques:- Farmer Jones sold a pair of cows for Rs. 210. He made a profit of 10% on one, and on the other he lost 10%. Altogether he made a profit of 5%. How many did each cow originally cost him?
Ques:- Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him.What is the length of faster train ?(a) 100m(b) 75m(c) 120m(d) 50m
Ques:- What do you look for in a job?
Ques:- You are standing on top of a tower of ht 200 mt. .At 100 mt. ht . from bottom of tower there is a peg where u can tie a rope. You have a rope of length 150 mt. with you and using this rope you have to get down the tower. you can not jump or there is nobody to help you. how will u get down the tower??
Ques:- The age of father 10 years ago was thrice the age of his son. Ten years hence, father’s age was five times the age of the son. After 6 years, son’s age will be:
Ques:- Where do you like to be posted?
Ques:- “Raw” means ?
Recent Answer : Added by Admin On 2020-05-17 12:01:18:

“RAW”:
RAW IS AN INDIAN INTILLIGENCE WING.
“RESEARCH AND ANALYSIS WING”

Ques:- Why are not you earning more money at this stage of your career?
Ques:- Find the nearest to 25268 which is exactly divisible by 467?
Ques:- What has disappointed you about a job?
Ques:- Divya’s father, pointing towards a person, said, “He is the brother of my father’s only sibling”. How is the person related to Divya ?
Recent Answer : Added by Geetha On 2022-08-14 16:39:47:

Niece

Ques:- Please tell me what about your self?

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Devendra Bhardwaj With a decade of experience as a Job Hiring Expert, I am a results-driven professional dedicated to elevating recruitment strategies. My expertise lies in navigating the dynamic landscape of talent acquisition, employing innovative approaches to attract, assess, and secure top-tier candidates. I excel in optimizing hiring processes, leveraging cutting-edge technologies, and fostering collaborative relationships with stakeholders. A keen understanding of industry trends allows me to stay ahead, ensuring a competitive edge in securing the best talent for your organization. I am passionate about connecting the right people with the right opportunities and thrive in creating impactful, streamlined recruitment solutions.

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