PSLEMark pushes two rods, Y and Z, straight into the ground until the length of each rod that is above the ground is the same.
17 of Y and
111 of Z are in the ground. The length of Y in the ground is 14 cm longer than the length of Z in the ground. What is the total length of rods Y and Z?
Fraction of Rod Y above ground
= 1 -
17 =
67 Fraction of Rod Z above ground
= 1 -
111 =
1011 Heights of Rods Y and Z above ground are the same.
67 Y =
1011 Z
3035 Y =
3033 Z
Length of Rod Y more than length of Rod Z
= 35 u - 33 u
= 2 u
2 u = 14
1 u = 14 ÷ 2 = 7
Total length of Rods Y and Z
= 35 u + 33 u
= 68 u
= 68 x 7
= 476 cm
Answer(s): 476 cm