PSLEJeremy pushes two sticks, C and D, straight into the ground until the length of each stick that is above the ground is the same.
16 of C and
110 of D are in the ground. The length of C in the ground is 24 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 -
16 =
56 Fraction of Stick D above ground
= 1 -
110 =
910 Heights of Sticks C and D above ground are the same.
56 C =
910 D
4554 C =
4550 D
Length of Stick C more than length of Stick D
= 54 u - 50 u
= 4 u
4 u = 24
1 u = 24 ÷ 4 = 6
Total length of Sticks C and D
= 54 u + 50 u
= 104 u
= 104 x 6
= 624 cm
Answer(s): 624 cm