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MATH / There is a number C. The number C is a multiple of 7, but is NOT a multiple of 3. The number C is greater than 20, but less than 30. What is this number C?

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problem

There is a number CC. The number CC is a multiple of 7, but is NOT a multiple of 3. The number CC is greater than 20, but less than 30. What is this number CC?
Plain-text mathematical notation (without MathML)
There is a number C. The number C is a multiple of 7, but is NOT a multiple of 3. The number C is greater than 20, but less than 30. What is this number C?
Original LaTeX notation
There is a number $C$. The number $C$ is a multiple of 7, but is NOT a multiple of 3. The number $C$ is greater than 20, but less than 30. What is this number $C$?

level

Level 1

type

Prealgebra

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