PSLEMark pushes two sticks, T and U, straight into the ground until the length of each stick that is above the ground is the same.
18 of T and
111 of U are in the ground. The length of T in the ground is 24 cm longer than the length of U in the ground. What is the total length of sticks T and U?
Fraction of Stick T above ground
= 1 -
18 =
78 Fraction of Stick U above ground
= 1 -
111 =
1011 Heights of Sticks T and U above ground are the same.
78 T =
1011 U
7080 T =
7077 U
Length of Stick T more than length of Stick U
= 80 u - 77 u
= 3 u
3 u = 24
1 u = 24 ÷ 3 = 8
Total length of Sticks T and U
= 80 u + 77 u
= 157 u
= 157 x 8
= 1256 cm
Answer(s): 1256 cm