Question
PSLE
Glen pushes two rods, Y and Z, straight into the ground until the length of each rod that is above the ground is the same.

15 of Y and 18 of Z are in the ground. The length of Y in the ground is 15 cm longer than the length of Z in the ground. What is the total length of rods Y and Z?
2 m

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PSLE
Glen pushes two rods, Y and Z, straight into the ground until the length of each rod that is above the ground is the same.

15 of Y and 18 of Z are in the ground. The length of Y in the ground is 15 cm longer than the length of Z in the ground. What is the total length of rods Y and Z?