# 3i Infotech Papers: Sample Questions 54 - 56 of 1245

Examrace Placement Series prepares you for the toughest placement exams to top companies.

## Question number: 54

Short Answer Question▾

### Write in Short

An equilateral triangle of sides 3 inch each is given. How many equilateral triangles of side 1 inch can be formed from it?

### Explanation

An equilateral triangle has side of 3 inches.

Area of equilateral triangle =

=

From this triangle we are making x number of equilateral triangles of side 1 inch.

We are asked to find how many small triangles can be from the bigger one.

Area of both will remain same.

So,

x = 9

So, we can make 9 equilateral triangles of 1 inch side from 3 inch equilateral triangle.

## Question number: 55

Short Answer Question▾

### Write in Short

Daal is now being sold at Rs. 20 a kg. During last month its rate was Rs. 16 per kg. By how much percent should a family reduce its consumption so as to keep the expenditure fixed?

### Explanation

We know that, rate

Family should reduce their consumption by,

So, family should reduce their consumption by 20%.

## Question number: 56

Short Answer Question▾

### Write in Short

What is the binary equivalent of 52?

### Explanation

For binary representation, only 0 and 1 two digits are used.

Here, for 8 bit representation, , , , , , , ,

So, to represent 52 we need

Placing 1 in these positions and 0 in rest of the positions, we will get 00110100.

So, binary equivalent of 52 will be 110100.