In the following question, choose the one-word substitute for the phrase: sums of money expressed in a specified monetary unit.

Introduction / Context:
This English vocabulary question tests your knowledge of one-word substitutes. The phrase given is sums of money expressed in a specified monetary unit, and you must identify the single word that captures this idea accurately and concisely. Questions of this type are common in competitive exams because they check precision of language and your familiarity with formal banking and financial terminology.

Given Data / Assumptions:

• The phrase describes sums of money.
• These sums are expressed in a particular monetary unit, such as rupees or dollars.
• We need a standard English noun used in finance or everyday usage.
• Only one option should fully match the meaning of the phrase.

Concept / Approach:
The key idea is that each individual amount of money, when expressed in a particular currency, is called a denomination. For example, ten rupees, fifty rupees, or one hundred rupees are different denominations of currency. The phrase sums of money expressed in a specified monetary unit clearly refers to such denominations. The correct option must therefore be closely linked to this technical usage, rather than a general word for money or income.

Step-by-Step Solution:
Step 1: Identify the core concept in the phrase: specific sums of money related to a monetary unit.Step 2: Recall that the standard word for different fixed values in a currency is denominations.Step 3: Compare each option with this meaning and remove those that refer to general income or transfers.Step 4: Confirm that denominations precisely fits sums of money expressed in a specified monetary unit.Step 5: Select denominations as the correct one-word substitute.

Verification / Alternative check:
Think of how we talk about currencies in daily life. We say that a currency note is of a particular denomination, such as a ten rupee note or a fifty rupee note. We do not call it a deposit, revenue, or investment. Standard dictionaries also define denomination in finance as a named or stated value of a currency or bond, which matches the phrase in the question. This confirms that denominations is the most accurate and conventional choice.

Why Other Options Are Wrong:

• deposits: This refers to money placed in a bank account, not to the units of currency in which the money is expressed.
• remittances: This means money sent from one place to another, usually across regions or countries, and does not mean sums expressed in particular units.
• revenues: This refers to income, especially of a government or business, and is about earnings, not currency values.
• investments: This means money put into assets to gain profit and is not about the face value of the money itself.

Common Pitfalls:
Candidates sometimes get distracted by general money related words like revenue or deposits because they sound financial. However, the question is not asking about income or savings, but about how money is expressed in terms of units like rupees or dollars. Another common error is to ignore the phrase expressed in a specified monetary unit, which is the exact clue pointing to denominations.

Final Answer:
The correct one-word substitute for the phrase sums of money expressed in a specified monetary unit is denominations.