Olivia had a ribbon of 260 cm long. She tied some balloons on the ribbon. Part of the ribbon and balloons were shown. Each balloon was 17 cm apart from one another.
- What is the length of the ribbon between the fourth and the ninth balloon?
- Find the most number of balloons that could be tied on the 260 cm of ribbon with balloons at 17 cm apart from one another.
(a)
Number of intervals between the fourth and the ninth balloon
= 9 - 4
= 5
Length of the ribbon between the fourth and the ninth balloon
= 5 x 17
= 85 cm
(b)
Sets of 17 cm
= 260 ÷ 17
= 15 r 5
Most number of balloons
= 15 + 1
= 16
Answer(s): (a) 85 cm; (b) 16