In which of the following statements, number ‘three’ is used in ordinal sense ?

The correct option is "I live on the third floor of this building."

Understanding Ordinal vs. Cardinal Numbers:

1. Cardinal Numbers: These numbers are used for counting quantities or indicating how many items/objects are present in a set (e.g., one, two, three, four).

2. Ordinal Numbers: These numbers are used to indicate position, rank, order, or sequence of something in a series (e.g., first, second, third, fourth).

Analyzing the given options:

• "I live on the third floor of this building." - Here, "third" denotes the specific order or position of the floor in a sequence of floors. Thus, the number is used in an ordinal sense.

• "This house has three rooms." - Here, "three" counts the total number of rooms (cardinal sense).

• "All groups have three team members." - Here, "three" counts the number of people in a group (cardinal sense).

• "This box contains many sets of three pencils." - Here, "three" counts the quantity of pencils in each set (cardinal sense).

Therefore, the sentence where the number 'three' is used in an ordinal sense is "I live on the third floor of this building."