A tour group split into two groups when waiting in line for food

A tour group split into two groups when waiting in line for food at
a fast food counter. The first group bought 6 slices of pizza and 4 soft drinks for $ 28.28. The second group bought 5 slices of pizza and 4 soft drinks for $ 24.50. How much does one slice of pizza cost?

– A. None of these.
– B. A slice of pizza costs $1.40.
– C. A slice of pizza costs $3.28.
– D. A slice of pizza costs $1.90.
– E. A slice of pizza costs $3.78.

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