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               OMY Classroom

​Qn 8 (Difficulty : Medium)

Qn 2 (Difficulty : Medium)

Qn 3 (Difficulty : Medium)

2) Cut different models into same unit

Qn 4 (Difficulty : Medium)

​Qn 9 (Difficulty : Medium)

Qn 5 (Difficulty : Medium)

Qn 1 (Difficulty : Medium)

Since 2014

​Qn 6 (Difficulty : Medium)

​Qn 7 (Difficulty : Medium)

​Qn 10 (Difficulty : Medium)