# Aptitude [ST Microelectronics Placement]: Sample Questions 15 - 17 of 40

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## Question 15

Aptitude
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### Write in Short

Y catches 5 times more fishes than X. If total number of fishes caught by X and Y is 42, then number of fishes caught by X?

### Explanation

Here, Y catches 5 times more fishes than X. So, Y = 5X

And total number of fishes caught by X and Y is 42. So, X + Y = 42

Substituting the value of Y in terms of X

We can get, X + 5X = 42

6X = 42

X = 7

## Question 16

Aptitude
Edit

### Write in Short

If amplitude of signal is reduced to half and N bits samples are used with M quantization level, then SNR will be reduced by a factor of

### Explanation

Basically SNR = signal to Noise Ratio

SNR =

Based on Amplitude level, SNR can be defined as,

SNR = 20 log

Here, =

So,

## Question 17

Aptitude

### Question

MCQ▾

Opposite of Remote?

Choice (4)

a.

Near

b.

Huge

c.

Far

d.

Village

a.

### Explanation

• The meaning of each word is given below.
• Remote: distant in space or time (or located far away)
• Far: over a large expanse of space or time
• Near: a short period of time from or located a short distance away
• Huge: extremely large or enormous
• Village: a group of houses or buildings situated in a rural area
• From the meaning of each word we can see that exact antonym of remote is near

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