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IMSO 2017 — Mathematics — Short Answer Question 9

IMSO Maths · IMSO 2017 — Mathematics — Short Answer

Question 9

A sculptor wanted to carve a statue from a piece of marble. On the first week, the sculptor carved out 35% of the original piece of marble. On the second week, he carved out 20% of what was left, and on the third week, he carved out 25% of the remaining block to complete the statue. The weight of the completed statue is 48.75 kg. What was the weight, in kg, of the original piece of marble?