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