Four mark exercise problems III — task. Mathematics State Board, Class 7.

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An artist can spend any amount between \(₹80\) and \(₹200\) on brushes. If cost of each brush is \(₹5\) and there are \(6\) brushes in each packet, then how many packets of brush can the artist buy?

Answer:

The number of packets of brush the artist buys are

\(3 \leq x < 6\) or \(x = 3, 4\) and \(5\)
\(3 < x < 6\) or \(x = 4\) and \(5\)
\(3 < x \leq 6\) or \(x = 4, 5\) and \(6\)
\(3 \leq x \leq 6\) or \(x = 3, 4, 5\) and \(6\)

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14. Four mark exercise problems III

Exercise condition: