PSLELiam pushes two sticks, R and S, straight into the ground until the length of each stick that is above the ground is the same.
16 of R and
19 of S are in the ground. The length of R in the ground is 18 cm longer than the length of S in the ground. What is the total length of sticks R and S?
Fraction of Stick R above ground
= 1 -
16 =
56 Fraction of Stick S above ground
= 1 -
19 =
89 Heights of Sticks R and S above ground are the same.
56 R =
89 S
4048 R =
4045 S
Length of Stick R more than length of Stick S
= 48 u - 45 u
= 3 u
3 u = 18
1 u = 18 ÷ 3 = 6
Total length of Sticks R and S
= 48 u + 45 u
= 93 u
= 93 x 6
= 558 cm
Answer(s): 558 cm