PSLEVincent pushes two poles, F and G, straight into the ground until the length of each pole that is above the ground is the same.
18 of F and
110 of G are in the ground. The length of F in the ground is 16 cm longer than the length of G in the ground. What is the total length of poles F and G?
Fraction of Pole F above ground
= 1 -
18 =
78 Fraction of Pole G above ground
= 1 -
110 =
910 Heights of Poles F and G above ground are the same.
78 F =
910 G
6372 F =
6370 G
Length of Pole F more than length of Pole G
= 72 u - 70 u
= 2 u
2 u = 16
1 u = 16 ÷ 2 = 8
Total length of Poles F and G
= 72 u + 70 u
= 142 u
= 142 x 8
= 1136 cm
Answer(s): 1136 cm