34 of a thread was used to tie a box. 14 cm was used for the thread knot.
- Find the length of the thread used.
- What was the original length of the thread?
(a)
Length of the thread used
= 12 x 2 + 10 x 2 + 8 x 4 + 14
= 90 cm
(b)
Original length of the thread = 4 u
Length used to tie the box = 3 u
3 u = 90 cm
1 u = 90 ÷ 3 = 30
Original length of the thread
= 4 u
= 30 x 4
= 120 cm
Answer(s): (a) 90 cm; (b) 120 cm