Nicole had a ribbon of 240 cm long. She tied some balloons on the ribbon. Part of the ribbon and balloons were shown. Each balloon was 11 cm apart from one another.
- What is the length of the ribbon between the second and the eleventh balloon?
- Find the most number of balloons that could be tied on the 240 cm of ribbon with balloons at 11 cm apart from one another.
(a)
Number of intervals between the second and the eleventh balloon
= 11 - 2
= 9
Length of the ribbon between the second and the eleventh balloon
= 9 x 11
= 99 cm
(b)
Sets of 11 cm
= 240 ÷ 11
= 21 r 9
Most number of balloons
= 21 + 1
= 22
Answer(s): (a) 99 cm; (b) 22