# Ecad Interview Questions, Process, and Tips

Ques:- What is efficiency of transformer?
Ques:- A person invested in all Rs. 2600 at 4%, 6% and 8% per annum simple interest. At the end of the year, he got the same interest in all the three cases. The money invested at 4% is?
Ques:- Raman ranks sixteenth from the top and forty ninth from the bottom in a class. How many students are there in the class ?
Ques:- A four digit number is to be formed using the digits 1 to 7 All digits of the number are different and repetition is not allowed.
1. How many such numbers can be formed ?
2. How many such numbers are divisible by 4 ?
Ques:- Why do you want to study MS in computer science in USA
Ques:- Given n people live in n houses and at some instant all of them disappear and reappear in some other house. What is the probability that no two meet each other.
Ques:- Suppose you already have job offer and giving to interview to other new company. What reasoning should be given if other company employer asks that about reasons to not accept that job offer. I mean why you will not accept that offer if we will offer you?
Ques:- What type of growth are you looking for?
Ques:- How many kilograms of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture of Rs. 9.24 per kg?
A. 36 kg
B. 42 kg
C. 54 kg
D. 63 kg

d

Ques:- The price of sugar increases by 20%, by what % should a housewife reduce the consumption of sugar so that expenditure on sugar can be same as before ?(a) 15%(b) 16.66%(c) 12%(d) 9%

(b) 16.66%

Earlier for ₹x we could purchase y gm of sugar.
Now we pay ₹1.2x for y gm of sugar

(As there was an increase in price so, x + 20%x = 1.2x)

At current rates for ₹x you can purchase y/1.2 gm of sugar

So the reduced consumption is y-(y/1.2)

Percentage change = (reduced consumption/ original consumption ) *100

That is (0.2/1.2) *100 = 16.66% (approx)

Ques:- 55*55*55+45*45*45/55*55-55*45+45*45

100

Ques:- If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage.

If discount is 25%
Profit 25%
If discount10%
Profit?
Suppose 100rs is price
25% discount make it 75
25%profit that means 75×100/125=60
Cp is 60
10 % discount make sp 90 profit is 30%

Ques:- The side of a square is increased by 25% then how much % does its area increases?

56.25%

Ques:- Pushpa is twice as old as Rita was 2 years ago. If the difference of their ages be 2 years, how old is Pushpa today?
A. 6 years
B. 7 years
C. 8 years
D. 10 years

6 yeara old

Ques:- ABOUT MY FAMILY & EDUCATION
Ques:- If in a certain language, COUNSEL is coded as BITIRAK, how is GUIDANCE written in that code ?

FUHAZIBA

Ques:- Two trains of length 120 m and 280 m are running towards each other on parallel lines at 42 kmph and 30 kmph respectively. In what time will they be clear of each other from the moment they meet?

I solve it as the 280m train being stationary… and the 120m train moving at (42+30) = 72kph…. or 20mps

The front of the train will have to go 280m to pass the stationary train plus another 120m for the backs to clear… that is 400m in all.

The time to travel 400m at 20mps is 20secs

Ques:- You have been given sand time clocks of 4 and 7 minutes. How to measure 9 minutes?

7 min clock:|——-7——-|
4 min clock:|—–4—-|—-4—–|—–4—-|—–4—-|
you got 9 min: |—————9————–|

Ques:- A boy travels in a scooter. After covering 2/3rd of the distance, the wheel got punctured. He covered the remaining distance by walking. Walking time is twice of the time taken in scooter. How many times the riding speed is of the walking speed?…
Ques:- How are you helpful to us?
Ques:- Three numbers are in the ratio 2:3:4 and their product is 1536. what is the Largest number of these numbers?

16

Ques:- Diophantus passed one sixth of his life in childhood, one twelfth in youth, and one seventh more as a bachelor; five years after his marriage a son was born who died four years before his father at half his final age. How old is Diophantus?
Ques:- Are you ready to work as a Fresher or Trainee?
Ques:- How many seconds will a 500 m long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?

speed of the train respect to man
= (63 – 3) km/hr
= 60 km/hr
= 60 * 1000 / 3600 m/sec
= 50/3 m/sec

time
= distance/speed
= 500 * 3/ 50
= 30 sec

Ques:- In a company 3/5 of people know shorthand 1/4th know typing and 1/5 know both. What fraction of people do not know both?

4/5

Ques:- Have you made any individual presentations recently? How did you prepare?
Ques:- There is a pond of irregular shape and size. Suggest a method to find the volume of water in the pond.
Ques:- HOW MANY LINES CAN BE DRAWN FROM 10 POINTS IN A CIRCLE?