Wendy had a ribbon of 180 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 second and the eighth balloon?
- Find the most number of balloons that could be tied on the 180 cm of ribbon with balloons at 17 cm apart from one another.
(a)
Number of intervals between the second and the eighth balloon
= 8 - 2
= 6
Length of the ribbon between the second and the eighth balloon
= 6 x 17
= 102 cm
(b)
Sets of 17 cm
= 180 ÷ 17
= 10 r 10
Most number of balloons
= 10 + 1
= 11
Answer(s): (a) 102 cm; (b) 11