Choose the best alternatives in place of ? out of the four given alternatives (a), (b), (c), (d).
`M xx N : 13 xx 14 :: F xx R : ? `

Options

A. `7 xx 19`
B. `5 xx 17`
C. `14 xx 15`
D. `6 xx 18`

Answer

To solve the analogy problem \( M \, xx \, N : 13 \, xx \, 14 :: F \, xx \, R : ? \), we will follow these steps:

### Step 1: Identify the place values of the letters
- The first pair is \( M \) and \( N \).
- The place value of \( M \) is 13 (since M is the 13th letter of the alphabet).
- The place value of \( N \) is 14 (since N is the 14th letter of the alphabet).

### Step 2: Establish the relationship
- The relationship we see is \( M \, xx \, N \) corresponds to \( 13 \, xx \, 14 \).
- This indicates that the letters are replaced by their respective place values.

### Step 3: Apply the same logic to the second pair
- Now we look at \( F \) and \( R \).
- The place value of \( F \) is 6 (since F is the 6th letter of the alphabet).
- The place value of \( R \) is 18 (since R is the 18th letter of the alphabet).

### Step 4: Formulate the expression
- Following the same pattern, we replace \( F \) and \( R \) with their place values:
- \( F \, xx \, R \) becomes \( 6 \, xx \, 18 \).

### Step 5: Calculate the product
- Now we calculate the product of the place values:
- \( 6 \times 18 = 108 \).

### Step 6: Identify the answer
- Thus, the value that replaces the question mark is 108.

### Final Answer
The answer is \( 108 \).

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