Question
PSLE
Sam pushes two sticks, M and N, straight into the ground until the length of each stick that is above the ground is the same.

15 of M and 18 of N are in the ground. The length of M in the ground is 15 cm longer than the length of N in the ground. What is the total length of sticks M and N?
2 m

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PSLE
Sam pushes two sticks, M and N, straight into the ground until the length of each stick that is above the ground is the same.

15 of M and 18 of N are in the ground. The length of M in the ground is 15 cm longer than the length of N in the ground. What is the total length of sticks M and N?