Question

Which number is rational, an integer, and a real number?

a. 1.5
b. There is no such number
c. -5
d. 5/7

Answer 1

The correct answer to the question is c. -5, as it is the only option that is rational, an integer, and a real number.

Step-by-step explanation:

The student has asked which number is rational, an integer, and a real number. Among the given options:

• a. 1.5 is rational and real but not an integer.
• b. There is no such number is incorrect because such numbers exist.
• c. -5 is rational, an integer, and also real, so it meets all three criteria.
• d. 5/7 is rational and real but not an integer.

Therefore, the correct answer is c. -5.