Oz optics ltd. Interview Questions, Process, and Tips

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:- Describe red color to a blind person
Ques:- The average of 10 numbers is calculated as 15. It is discovered later on that while calculating the average, one number namely 36 was wrongly read as 26. The correct average is?
Recent Answer : Added by kawooya Alex On 2021-10-03 03:45:16:

16

Ques:- A die is thrown twice what is the probability that you get same number
Recent Answer : Added by Admin On 2020-05-17 12:02:24:

A die is thrown twice n(s)=36
The probability of getting same number is (1,1)(2,2)(3,3)
(4,4)(5,5)(6,6) i.e n(A)=6
Ans. P(A)=n(A)/n(s)
= 6/36
=1/6.
So, The Answer is 1/6

Ques:- In the month of october in a year has exactly four Mondays and four Fridays, find what day of week will be on the 20th of November of that year.
Ques:- P, Q, R, S and T are five speakers who have to speak on a particular day, not necessarily in the same order. R is neither the first nor the last speaker. There are three speakers after S and three speakers ahead of T. If P speaks after Q, then who is the last speaker to speak?
Recent Answer : Added by narendra On 2021-12-25 15:45:41:

T is the last speaker.

Ques:- A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?
Recent Answer : Added by Akash Chandra Khan On 2022-01-08 16:06:55:

The probability will be
white ball = 5/9
red ball = 4/9
The answer can be 5/9 and 4/9 or 1

Ques:- If every alternative letter starting from B of the English alphabet is written in small letter, rest all are written in capital letters, how the month “September” be written. (1) SeptEMbEr (2) SEpTeMBEr (3) SeptembeR (4) SepteMber (5) None of the above.
Ques:- Mr. Rahul spends 30% of his monthly salary on domestic expenses. He spends respectively 20% and 10% of the remaining salary on education of children and conveyance. Of the remaining amounts now he spends respectively 20% and 30%on entertainment and maintenance of house. He saves Rs.5512.50. what is the monthly salary of Mr. Rahul?
A. Rs. 22,500
B. Rs. 20,000
C. Rs. 25,000
D. Rs. 24,500
E. None of these
Recent Answer : Added by Admin On 2020-05-17 12:03:47:

How it is possible ? Please write in detail !!! This answer
s not a use !!!

Ques:- Find the least number which when divide by 2, 3, 4, 5 and 6 leaves 1, 2, 3, 4 and 5 as remainders respectively, but when divided by 7 leaves no remainder?
Recent Answer : Added by Raimi Ayinde On 2022-09-15 16:36:50:

119

Ques:- 9 balls are there one of them is of higher wt and remaining all are of same. given is one weighing scale and you can use it two times. How will you find the heavy ball in two trials only.
Recent Answer : Added by venkatesh On 2021-08-12 06:28:25:

Balls- B1, B2, B3, B4, B5, B6, B7, B8, B9.
Group1 – (B1, B2, B3), Group2 – (B4, B5, B6), Group3 – (B7, B8, B9)
Now weigh any two groups. Group1 on left side of the scale and Group2 on the right side.
When weighing scale tilts left – Group1 has a heavy ball or right – Group2 has a heavy ball or balanced – Group3 has a heavy ball.
Lets assume Group 1 has a heavy ball.
Now weigh any two balls from Group1. B1 on left side of the scale and B2 on right side.
When weighing scale tilts left – B1 is the heavy or tilts right – B2 is the heavy or balanced – B3 is the heavy.

Ques:- Personal Details , Salary negotiations , Sales related
Ques:- How do you define failure?
Ques:- What are some things you particularly liked about your last job?
Ques:- Of the 50 researchers in a workgroup 40% will be assigned to Team A and the remaining 60% to Team B. However, 70% of the researchers prefer Team A and 30% prefer Team B. What is the least possible number of researchers who will not be assigned to the team they prefer?
A. 15
B. 20
C. 30
D. 35
Recent Answer : Added by Bob On 2022-08-14 16:29:34:

15

Ques:- 2 hours after a freight train leaves Delhi a passenger train leaves the same station travelling in the same direction at an average speed of 16 km/hr. After travelling 4 hrs the passenger train overtakes the freight train. The average speed of the freight?
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:- At what rate percent on simple interest will a sum of money double itself in 30 years?
Recent Answer : Added by Amudha A On 2021-09-09 07:24:42:

A=P+SI——(1)
sum of money after 30 years = Double the money
A=2P———-(2)

Equate 1 and 2
P+SI=2P
SI=2P-P
SI=P————-(3)

WKT, SI= PTR/100

Equate 3 and SI

P=PTR/100
P=P*30*R/100
R=P*100/P*30
R=100/30 or 10/3 or 3(1/3) %

Ques:- One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill tank in 36 min, then the slower pipe alone will be able to fill the tank in?
Recent Answer : Added by Thrinayani sanagapati On 2022-08-14 16:28:52:

1/x+1/3x=1/36
4/3x=1/36
36*4=3x
X=48
So the slower pipe alone fill the tank in 48 minutes.

Ques:- Tell about yoursekf out of resume?
Ques:- An automobile financier claims to be lending money at S.I., but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes?
Ques:- About my self, regarding customer service.
Ques:- The average marks in mathematics scored by the pupils of a school at the public examination were 39. If four of these pupils who actually scored 5, 12, 15 and 19 marks at the examination had not been sent up, the average marks for the school would have been 44. Find the number of pupils sent up for examination from the school?
Ques:- Ratio between two numbers is 3: 4 and their sum is 420. What is the smaller number?
Recent Answer : Added by DHARANI R On 2021-08-26 16:05:51:

3:4
3x:4x
3x+4x=420
7x=420
x=60

smaller number=3(60)=180.

Ques:- How will you rate yourself .
Ques:- What is the punch line of iob????????
Ques:- Why do you want to travel to the USA?
Ques:- If 70% of an equal to 40% of b, then ratio between a and b is?
Recent Answer : Added by Admin On 2022-09-30 08:09:03:

answer= 4:7

Ques:- A chicken farmer surveyed his flock with the following results. The farmer Has: 9 fat red roosters (male), 37 fat chickens 6 thin red roosters 2 fat red hens , 7 thin brown hens ,5 thin red hens 26 fat roosters (total) ,18 thin brown roostersAnswer the following questions about the flock(HINT: in your Venn diagram make a circle for fat, for male and for red). How many chickens are:
Recent Answer : Added by Admin On 2020-05-17 12:05:24:

a:37
b:22
c:50
d:11
e:25
f:27

Ques:- Family back ground and why i choose this line?

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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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