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Queppelin Technology Solutions Interview Questions and Answers
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Ques:- Give me three reasons proving you deserve this job?
Right Answer:

Sure! Here are three strong reasons why I believe I deserve this job:

1. I’m dedicated and always give my best — I take ownership of my work and strive to deliver high-quality results on time.

2. I’m a quick learner and adaptable — I can adjust to new environments, tools, or challenges and still perform efficiently.

3. I’m a team player with a positive attitude — I communicate well, support others, and stay focused on common goals, which helps build a strong and productive work environment.

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Ques:- The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is?
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Ques:- A person wanted to withdraw X rupees and Y paise from the bank. But cashier made a mistake and gave him Y rupees and X paise. Neither the person nor the cashier noticed that. After spending 20 paise, the person counts the money. And to his surprise, he has double the amount he wanted to withdraw. Find X and Y
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Ques:- A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is
A. 1220
B. 1250
C. 22030
D. 220030
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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:
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Ques:- What is regression analysis and how is it used in data interpretation
Right Answer:

Regression analysis is a statistical method used to understand the relationship between one dependent variable and one or more independent variables. In simpler terms, it helps you see how changes in one thing affect another.

For example, you might use regression to see how advertising budget (independent variable) affects product sales (dependent variable).

Explanation:

The main goal of regression analysis is to build a model that can predict or explain outcomes. It answers questions like:

If I change X, what happens to Y?

How strong is the relationship between the variables?

Can I use this relationship to make future predictions?

There are different types of regression, but the most common is linear regression, where the relationship is shown as a straight line.

The regression equation is usually written as:

 Y = a + bX + e

Where:

Y = dependent variable (what you’re trying to predict)

X = independent variable (the predictor)

a = intercept

b = slope (how much Y changes when X changes)

e = error term (random variation)

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Ques:- What have you found is the best tool or innovation that has come out in the last year?
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Ques:- Perimeter of the back wheel = 9 feet, front wheel = 7 feet on a certain distance, the front wheel gets 10 revolutions more than the back wheel .What is the distance?
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Ques:- Rich man keeps me in the pocket, Poor man throws me away, Kids eat me. The answer is –u–e–l (a 9 letter word). Find the word
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Ques:- Why should I hire you from the outside when I could promote someone from within?
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Ques:- A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?
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Ques:- There are 3 sticks placed at right angles to each other and a sphere is placed between the sticks . Now another sphere is placed in the gap between the sticks and Larger sphere . Find the radius of smaller sphere in terms of radius of larger sphere.
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Ques:- Perimeter of front wheel =30, back wheel = 20. If front wheel revolves 240 times. Howm many revolutions will the back wheel take?
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Ques:- Why you want to work in a domestic call center?
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Ques:- A disc is spinning on a spindle, and you don’t know which way. You are given a set of pins. Describe how you would use them to determine which way the disc is spinning?
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Ques:- A, B and C enter into a partnership. A initially invests Rs.25 lakhs and adds another Rs.10 lakhs after one year. B initially invests Rs.35 lakhs and withdraws Rs.10 lakhs after 2 years and C invests Rs.30 lakhs. In what ratio should the profit be divided at the end of 3 years?
A. 10 : 10 : 9
B. 19 : 19 : 18.
C. 20 : 19 : 18
D. 20 : 20 : 19
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Ques:- There are 6 couples (12 people). 4 people are selected at random. What is the probability that exactly one couple will be selected ?
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Ques:- A, B and C enter into a partnership with a capital in which A’s contribution is Rs.10,000. If out of a total profit of Rs. 1000, A gets Rs.500 and B gets Rs.300, then C’s capital is
A. Rs. 3000
B. Rs. 4000
C. Rs. 5000
D. Rs. 6000
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Ques:- Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is?
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Ques:- Which country is the largest producer of gold in the world?
A. U.S.A.
B. South Africa
C. Russia
D. Switzerland
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Ques:- Tell us about a challenging situation you have faced. What was the situation and how did you cope with it?
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Ques:- Find out the wrong number in a given series.

6, 13, 18, 25, 30, 37, 40
A. 25
B. 30
C. 37
D. 40