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