Explanation

Given expression: 1830 + 20 × 50 - 396 ÷ 3

Following order of operations:

1. Multiplication: 20 × 50 = 1000

2. Division: 396 ÷ 3 = 132

3. Now, the expression becomes:

1830 + 1000 - 132

= 1830 + 1000 = 2830

= 2830 - 132 = 2698

Explanation

In 1971, during the Indo-Pak war, the 7th American Fleet (Marine Craft) moved toward East Pakistan (now Bangladesh).

Its purpose was to show support for Pakistan, but it did not engage militarily in the conflict.

Explanation

The Kashmir culture is a blend of multiple customs.

This option follows the correct subject + verb + complement sentence structure.

It clearly conveys the idea that Kashmir's culture combines various customs in a grammatically correct way.

Explanation

Given logx (4/9) = 2

This can be rewritten as:

x² = 4/9

Taking the square root of both sides:

x = ±√(4/9)

x = ±2/3

Since the base of a logarithm is typically positive, we consider x = 2/3.

Explanation

Let's solve the equation:

4/5 (x + 7) = 3(2x - 7)

Multiply both sides by 5 to eliminate the fraction:

4(x + 7) = 15(2x - 7)

Expand both sides:

4x + 28 = 30x - 105

Subtract 4x from both sides:

28 = 26x - 105

Add 105 to both sides:

133 = 26x

Divide both sides by 26:

x = 133/26

Explanation

Sigmund Freud, the founder of psychoanalysis, introduced the concept of defense mechanisms as strategies used by the ego to manage conflict between the id and superego.

These mechanisms—like repression, denial, and projection—help reduce anxiety by distorting reality unconsciously.

Explanation

The sentence has one independent clause ("I will start my own business") and one dependent (if) clause ("If I don’t get selected").

This structure makes it a complex sentence.

Explanation

Uncontrolled nuclear reactions release ionizing radiation (like gamma rays), which can cause cancer and genetic mutations.

This radiation damages living cells, making such reactions highly dangerous.

Explanation

Use “most interesting” for the superlative form to compare with all other books.

It fits the phrase "ever read," implying the highest degree.

Explanation

The thief was caught by the police yesterday.

The sentence is changed to passive voice in the past tense.

"Was caught" correctly matches the past action "caught."