# Oxford instruments Interview Questions Answers, HR Interview Questions, Oxford instruments Aptitude Test Questions, Oxford instruments Campus Placements Exam Questions

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Ques:- One student takes 20 mins to reach school if he goes at a speed of 15kmph .At what speed should he go to reach in 15 mins ?

1) time =20mins,speed=15kmph=15*(5/18)=25/6 m/sec
distance=20*(25/6)=250/3 m
then 2) given as time =15min
speed=250/3*15=(50/9)*(18/5)kmph=20kmph

Ques:- 6 cats kill 6 rats in 6 minutes .how many cats will be needed to kill 100 rats in 50 minutes?

one cat kill one rat six minutes
so 1 cat kill 100 rat willbe needed 6*100=600minutes
then 100 rates kill 50minutes means then 600/50=12

Ques:- In a country where everyone wants a boy, each family continues having babies till they have a boy. After some time, what is the proportion of boys to girls in the country? (Assuming probability of having a boy or a girl is the same)

The probability that a child will be born male on any given day is always 1/2.

Suppose:
In any time period, the family making out babies and half boys and another half girls then, In the next time period: half the families turn themselves off and again the half remaining families making out the babies which repeat the first period.

Ques:- Below is an equation that isn't correct yet. By adding a number of plus signs and minus signs between the ciphers on the left side (without changes the order of the ciphers), the equation can be made correct. 123456789 = 100 How many different ways ar

28
to arrange m objects in n places => nCm
i.e. for this example m=2(+,- sign) and n = 8(places between two number from 1 to 9)
SO, answer is : 8C2 = (8*7) / 2 = 28

Ques:- Why you consider yourself suitable for the post
Ques:- There are so many big companies like Reliance, Satyam,Infosys etc…But, y do u want to work for our company only?
Ques:- How describe our city(hyderabad) in a topic round during theinterview time?
Ques:- Using the ciphers 1 up to 9, three numbers (of three ciphers each) can be formed, such that the second number is twice the first number, and the third number is three times the first number. Which are these three numbers?

The 3-digit number can be written as the sequence [n, 2n, 3n]
n = 1 → [1, 2, 3] → valid
n = 2 → [2, 4, 6] → valid
n = 3 → [3, 6, 9] → valid

n = 4 → [4, 8, 12] is not valid because this would lead to a 4-digit number
any value of n > 4 would also produce invalid answer

Answer: Three numbers: {123, 246, 369}

Ques:- Can you give me examples of experience on the job that you felt were satisfying?
Ques:- Time management means planning
Ques:- Achievements in my career.
Ques:- Why do you want leave teaching job and come to bpo sector?
Ques:- My personal Information
Ques:- Draw your selling skills and technique?
Ques:- If the perimeter of a rectangular garden is 600 m, its length when its breadth is 100 m is?
Ques:- Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest?
Ques:- If HEATER is written as KBDQHO, how will you encode COOLER ?