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