Question Discussion & Solution

For alphabet: increase alphabet by + 2

B + 2 → D + 2 → F + 2 → H + 2 → J + 2 → L

For Number: multiply by × 2

2 × 2 = 4

4 × 2 = 8

8 × 2 = 16

16 × 2 = 32

32 × 2 = 64

In the mixed series, the letter added 2 and number added 12 we get-

 Hence, "76" is the correct answer.

When the box will be constructed, the following symbols will be opposite to each other as shown below:

So, when the box will be constructed, the symbols O and K will be opposite to each other.

Hence, option 3) O and K is the correct answer.

Concept:

Software maintenance:

Any changes done in the software during its execution such as error correction, optimization etc. is software maintenance. Its objective is to preserve the value of software over time.

Explanation:

Types of software maintenance are:

Perfective maintenance: when there are new requirements from user side, then at that time changes made in the software is known as perfective maintenance. It makes the software more enhanced, clean structured, better than previous.

Adaptive maintenance: Changes done in the software environment that includes any work initiated as consequence of moving the software to different hardware or software is known as adaptive maintenance.

Preventive maintenance: It prevent software from future problems.

The set of given words are Deer, Cow, Giraffe are herbivorous. The most similar word is Horse. Shark, Hyena and Lion are different from Horse of the set of given words.

Hence, "Horse" is the correct answer.