Eva had a ribbon of 150 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 third and the eighth balloon?
- Find the most number of balloons that could be tied on the 150 cm of ribbon with balloons at 16 cm apart from one another.
(a)
Number of intervals between the third and the eighth balloon
= 8 - 3
= 5
Length of the ribbon between the third and the eighth balloon
= 5 x 16
= 80 cm
(b)
Sets of 16 cm
= 150 ÷ 16
= 9 r 6
Most number of balloons
= 9 + 1
= 10
Answer(s): (a) 80 cm; (b) 10