Each of the letters in the word CONTRAST is arranged in alphabetical order. How many letters are there in the English alphabetical series between the letter that is first from the left and the one that is fifth from the right in the new letter-cluster formed?

The correct answer is 13.

Step 1: Arrange the letters of the word in alphabetical order

The given word is CONTRAST.

Let's list the letters and sort them alphabetically:

Original Word: C, O, N, T, R, A, S, T

Alphabetical Order: A, C, N, O, R, S, T, T

Step 2: Identify the required positions

From the new arranged cluster (A, C, N, O, R, S, T, T):

1. The letter that is first from the left is A.

2. The letter that is fifth from the right:

- 1st from right: T

- 2nd from right: T

- 3rd from right: S

- 4th from right: R

- 5th from right: O

Step 3: Count the letters between 'A' and 'O' in the English alphabetical series

The English alphabetical series between A and O consists of the following letters:

B, C, D, E, F, G, H, I, J, K, L, M, N

Counting these letters gives a total of 13 letters.

Thus, there are 13 letters between the specified positions in the English alphabetical series.