Redarc electronics pty ltd Interview Questions, Process, and Tips

Ques:- How will you handle confidential company matters?
Ques:- Let S be the set of prime numbers greater than or equal to 2 and less than 100. Multiply all the elements of S. With how many consecutive zeros will the product end?
A. 1
B. 4
C. 5
D. 10
Recent Answer : Added by Yash G On 2023-03-01 17:24:09:

To determine how many consecutive zeros the product of S will end with, we need to find the highest power of 10 that divides the product. This is equivalent to finding the highest power of 5 that divides the product, since the number of factors of 2 will always be greater than the number of factors of 5.

The primes in S are {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97}.

There are 24 primes in S, so the product of S is:

2 x 3 x 5 x 7 x 11 x 13 x 17 x 19 x 23 x 29 x 31 x 37 x 41 x 43 x 47 x 53 x 59 x 61 x 67 x 71 x 73 x 79 x 83 x 89 x 97

We need to find the highest power of 5 that divides this product. To do this, we count the number of factors of 5 in the prime factorization of each number in S.

5 appears once: 5
5 appears once: 25
5 appears once: 35
5 appears once: 55
5 appears once: 65
5 appears once: 85
So, there are six factors of 5 in the product of S. However, we also need to consider the powers of 5 that arise from the factors 25, 35, 55, and 65.

25 = 5 x 5 appears once: 25
35 = 5 x 7 appears once: 35
55 = 5 x 11 appears once: 55
65 = 5 x 13 appears once: 65
Each of these numbers contributes an additional factor of 5 to the product of S. Therefore, there are 6 + 4 = 10 factors of 5 in the product of S.

Since each factor of 5 corresponds to a factor of 10, we know that the product of S will end with 10 zeros. Therefore, the product of S will end with 10 consecutive zeros

Ques:- Alok ordered 16 chapatis, 5 plates of rice, 7 plates of mixed vegetable and 6 ice-cream cups. The cost of each chapati is Rs.6, that of each plate of rice is Rs.45 and that of mixed vegetable is Rs.70. The amount that Alok paid the cashier was Rs.961. Find the cost of each ice-cream cup?
Recent Answer : Added by Nicey On 2022-03-09 16:42:07:

16 chapatis* 6 Rs= 96
5 plates of rice * 45 Rs = 225
7 plates of mixed vegetable * 70 Rs = 490
6 ice-cream * ??
The amount that Alok paid the cashier was Rs.961
96+225+490 = 811
961-811= 150
150/6 = 25
The cost of each ice-cream cup is 25 .Rs

Ques:- What is the value of b if a=5;b=++a + ++a
Ques:- What is your family background, what is your experience with prior employer, what is the expectations with our company policies.
Ques:- A man can row three-quarters of a kilometre against the stream in (11 + 1/4)Minutes and down the stream in (7 + 1/2) Minutes. The speed (in km/hr) of the man in still water is:
Ques:- X, Y and Z enter into a partnership. They invest Rs. 40,000, Rs. 80,000 and Rs. 1,20,000 respectively. At the end of the first year, Y withdraws Rs. 40,000, while at the end of the second year, Z withdraws Rs. 80,000. IN what ratio will the profit be shared at the end of 3 years?
Ques:- Find out the wrong number in each sequence:
8, 13, 21, 32, 47, 63, 83
A. 32
B. 47
C. 63
D. 83
Recent Answer : Added by A.Madhav On 2022-01-08 16:06:20:

47 is answer by consecutive adding of
8+5=13
13+8=21
21+11=32
32+14=46
46+17=63

Ques:- Why do u want to leave your present job
Ques:- What was your last experience tell me about this?
Ques:- There are four dogs/ants/people at four corners of a square of unit distance. At the same instant all of them start running with unit speed towards the person on their clockwise direction and will always run towards that target. How long does it take for them to meet and where?
Recent Answer : Added by Camile On 2022-09-15 16:36:29:

They’ll never meet unless some of them stop and other continue to run

Ques:- Why do you want to change this job?
Ques:- What sum of money put at C.I amounts in 2 years to Rs.8820 and in 3 years to Rs.9261?
Ques:- What is present company name & work?
Ques:- How is gross and net salary calculated ?
Ques:- A rectangular grass field is 75 m * 55 m, it has a path of 2.5 m wide all round it on the outside. Find the area of the path and the cost of constructing it at Rs.2 per sq m?
Ques:- There are some chickens in a poultry. They are fed with corn. One sack of corn will come for 9 days. The farmer decides to sell some chickens and wanted to hold 12 chicken with him. He cuts the feed by 10% and sack of corn comes for 30…
Recent Answer : Added by Admin On 2022-09-29 18:02:20:

answer : 36 –Explaination:
X= Chickens
Y = Qty per day

X*Y*9= 12 *.9 *Y*30

x=36

Ques:- Where did you find this job?
Ques:- The sum of three consecutive even numbers is 36.What is the middle number?
Recent Answer : Added by C nol On 2022-08-24 17:02:45:

Is it not 24?

Ques:- Why do you want to work for us or our company? or Why do you want this job?
Ques:- Who is the chief justice of supreme court?
Ques:- Rearrange BBIRAT
Recent Answer : Added by Admin On 2020-05-17 12:03:11:

RABBIT

Ques:- Who is your best friend and why?
Ques:- Why I am opting for recruitment as a career
Ques:- A power unit is there by the bank of the river of 900 mtrwidth. a cable is made from power unit to power a plantopposite to that of the river and 3000 mtr away from thepower unit. The cost of the cable bellows water Rs5 / mtrand cost of cable on the bank is Rs 4/ mtr. Find the totalof laying the cable.
Recent Answer : Added by Ramya s On 2021-03-24 18:26:16:

2100

Ques:- The smallest number when increased by ” 1 ” is exactly divisible by 12, 18, 24, 32 and 40 is:
Recent Answer : Added by Mahesh On 2021-07-30 16:30:08:

lcm (12,18,24,32,40) – 1
1440-1 = 1439

Ques:- How do you describe yourself as a professional?
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:- What do you mean by regulatory affair?
Ques:- X is half good a work man as Y and together they finish a job in 14 days. In how many days working alone Y finish the job?
Recent Answer : Added by Sammani On 2021-08-15 07:59:00:

21 days

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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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