Mary had a ribbon of 190 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 tenth balloon?
- Find the most number of balloons that could be tied on the 190 cm of ribbon with balloons at 16 cm apart from one another.
(a)
Number of intervals between the third and the tenth balloon
= 10 - 3
= 7
Length of the ribbon between the third and the tenth balloon
= 7 x 16
= 112 cm
(b)
Sets of 16 cm
= 190 ÷ 16
= 11 r 14
Most number of balloons
= 11 + 1
= 12
Answer(s): (a) 112 cm; (b) 12