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