2025 MSHS PRELIMS P1 Q11

2025 MSHS PRELIMS P1 Q11

Secondary 4
5 marks
  1. 6 workers can paint a building in 44 days. Find the additional number of workers needed if the building is to be painted in 11 days.[3]
  2. \(A\) is inversely proportional to \(B^2\). If \(B\) increases by 20%, find the percentage decrease in \(A\).[2]

Solution:

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Answer:(a) \(18\) (b) \(30.6\%\)

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