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This page contains the most recently asked technical questions and answers in the SignOff Semiconductors.

All of the questions listed below were collected by students recently placed at SignOff Semiconductors.

**Ques:- 555555 is divisible by**

**Ques:- Insert the missing number:**

2, 4, 12, 48, 240, (…..)

2, 4, 12, 48, 240, (…..)

**Recent Answer**: :

C)1440

2*2=4

4*3=12

12*4=48

48*5=240

240*6=1440

**Ques:- can anybody solve this series 0,6,24,60,120,210,?,? please give answer with the solution**

**Recent Answer**: :

copy cat

**Ques:- 37.5 ? (27)1.5 x 92 = 3?**

**Recent Answer**: :

(3)^ 7.5 ÷ (27)^1.5 x (9)^2 = 3?

⇒(3)^7.5 ÷ {(3)^(3 x 1.5)} x {(3)^(2 x 2)} = 3 ?

⇒ 3^(7.5 – 4.5 + 4) = 3?

⇒ 3^7 = 3?

⇒ ? = 7

**Ques:- Find out the distinct numbers that can be formed by 2, 3, 7, 6(don?t now exactly) that should be divided by 4?**

**Recent Answer**: :

Ans = 8

Use simple box method

[1][2][2][2]= 1x2x2x2 =8

Logic >

once place have 2 number (2,6)

Tens place have also 2 number (7,3)

So that number is divisible by 4

Now, 2 numbers fixed at once and tens place left 2 numbers which is choice at hundredth place

Now 3 number fix left 1 number which is placed at thousands place

Total number form is 4×4 = 16

But divisible by 4 is 1x2x2x2 =8

**Ques:- if the area of sqare increases by 69% then side of the sqr incr by**

**Recent Answer**: :

30%

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**Ques:- Whats your current posting?**

**Ques:- Zulus always speak truth and Hutus always speak lies. There are three persons A, B,& C. A met B and says “I am a Zulus as I am a Hutu”. We don't know what exactly he said. The B meets C and says to C that ” A is a Zulu”. Then C replied ” No, A…**

**Recent Answer**: :

Ok

**Ques:- There is a 4 inch cube painted on all sides. This is cut down into of 1 inch cubes. What is the no of cubes which have no pointed sides?**

**Ques:- How will you handle confidential company matters?**

**Ques:- My father’s name A.Kasi, he is car driver. My mother’s name K.Lakshmi, she is housewife. I have one elder brother.**

**Ques:- If the 3 digit number AB9 is a perfect square then is A an odd digit?**

**Recent Answer**: :

A perfect square is a square number of a digit. eg 64 is a perfect number, a square of 8

Now digits AB9 is a square number of a number.

AB9 Can also be written as A multiply by B multiply by 9

Get the Square root of AB9

Assumption, A=1, B=1

1*1=1=A, 1*1=1=B Therefore,

Square root of A = A, B = B and 9=3

Therefore

An odd number is a number indivisible by 2.

for example 1,3,5,7…….

Therefore Squares A*B*9= AB9

Where a=1, b=1, 3 as digits.

Conclusion

A=1 is an odd number

**Ques:- Three pipes, A, B, & C are attached to a tank. A & B can fill it in 20 & 30 minutesrespectively while C can empty it in 15 minutes. If A, B & C are kept open successively for 1 minute each, how soon will the tank be filled?**

**Recent Answer**: :

167

**Ques:- Do you consider yourself a self-starter? If so, explain why ( and give examples)**

**Ques:- How do you rate honesty & Integrity.**

**Ques:- If a man lost 4% by selling oranges at the rate of 12 a rupee at how many a rupee must he sell them to gain 44%?**

**Recent Answer**: :

17.9

**Ques:- How much time will take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?**

**Recent Answer**: :

4 years

**Ques:- What is the least number which when divided by 8, 12, 18 and 24 leaves the remainders 4, 8, 14 and 20 respectively?**

**Recent Answer**: :

68 is the least number when divided by 8, 12, 18 and 24 leaves the remainders 4, 8, 14 and 20

**Ques:- A man walks at a speed of 3 km/hr and runs at a speed of 7 km/hr. How much time will the man require to cover a distance of 10 1/2 km, if he completes half of the distance, i.e., (5 1/4) km on foot and the other half by running?**

**Recent Answer**: :

2hr 30min

**Ques:- A jogger running at 9 km/hr along side a railway track is 240 m ahead of the engine of a 120 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger?**

**Recent Answer**: :

– While the train is moving, the jogger will also be running in the same direction.

– for the head(engine) of the train to get to the current position of the jogger 240m away, it will take:

45km/hr => 12.5m/s => 240/12.5 = 19.2 seconds.

– But in the same period of time, the jogger will still be running and will have moved to a new location by: 9km/hr => 2.5m/s => 2.5 * 19.2 = 48m

To get to the new location at the speed of 12.5m/s will take the train:

48/12.5 = 3.84sec

In this additional time, the jogger will move forward by:

3.84 * 2.5 = 9.6m

at a speed of 12.5m/s, it will take the train less than a second to cover the additional 9.6m

If we add the distance the jogger will cover in 1 second to 9.6, it is still less than what the train can cover per second. let us see (9.6 + 2.5 = 12.1)

Therefore, the head of the train will pass the runner at approximately: 19.2 + 3.84 + 1 => 24.04 seconds.

For the train to completely pass the runner, it will need its whole length of 120m to be in front of the runner.

This will take an additional (9.6 + 2) seconds.

Therefore for the length of the train to be ahead of the runner it will take approx. 35.65 (24.04 + 9.6 + 2) seconds

Recent Answer: Added by SIDDHESHWAR BIRAJADAR On 2022-08-14 16:46:06:7