NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 9: Perimeter and Area - Problems and Solutions
Question 106

Question. 106

Room = 4.5 × 4 m. Tiles = 15 × 10 cm. Cost = ₹4.5 per tile.

Answer:

₹5400

Detailed Answer with Explanation:

Room area = 18 m² = 180000 cm².

Tile area = 150 cm². Number = 1200.

Cost = 1200 × 4.5 = ₹5400.

NCERT Exemplar Solutions Class 7 – Mathematics – Unit 9: Perimeter and Area – Problems and Solutions | Detailed Answers