Dana had a ribbon of 250 cm long. She tied some balloons on the ribbon. Part of the ribbon and balloons were shown. Each balloon was 16 cm apart from one another.
- What is the length of the ribbon between the fourth and the eleventh balloon?
- Find the most number of balloons that could be tied on the 250 cm of ribbon with balloons at 16 cm apart from one another.
(a)
Number of intervals between the fourth and the eleventh balloon
= 11 - 4
= 7
Length of the ribbon between the fourth and the eleventh balloon
= 7 x 16
= 112 cm
(b)
Sets of 16 cm
= 250 ÷ 16
= 15 r 10
Most number of balloons
= 15 + 1
= 16
Answer(s): (a) 112 cm; (b) 16