How do the scalar quantities differ from the vector quantities?

The only difference between the two quantities is that a scalar quantity includes magnitude only, whereas a vector quantity includes both magnitude as well as direction

Both the quantities include direction and magnitude. Scalar quantities can be combined using the rules of ordinary algebra, whereas vector quantities can be combined using the rules of vector algebra

A scalar quantity includes magnitude only, whereas a vector quantity includes both magnitude and direction, and both the quantities can be combined using the rules of ordinary algebra

A scalar quantity includes magnitude only and scalar quantities can be combined using the rules of ordinary algebra, whereas a vector quantity includes both magnitude and direction, and vector quantities can be combined using the rules of vector algebra