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