Inverse relation and paving rate

Inverse relation and paving rate

Secondary 2
TGM Original Questions
  1. The quantity \(a\) varies inversely as \(b+3\). The sum of its values when \(b=-2\) and \(b=3\) is \(70\). Find \(a\) when \(b=-5\).
  2. Six workers pave \(240\) m of road in \(5\) hours. How long will ten workers take to pave \(600\) m?

Solution:

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Answer:(a) \(a=-30\); (b) \(7.5\) h.

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