Question:
May and Nancy have equal number of pieces of ribbon. They each have a mix of long and short ribbons. The length of each piece of short ribbon is 40 cm and each piece of long ribbon is 70 cm. May has 7 pieces of short ribbon and Nancy has 18 pieces of long ribbon. The total length of May’s ribbons was 2.4 m longer than the total length of Nancy’s ribbons. How many pieces of ribbon does May have?