1.

An auditorium measures 80m in length and 30 min breadth. If the walls of the auditorium have to be decorated with colored buntings 4 times, find the length of buntings required. If the cost of 1m of buntings is Rs. 15, what is the total cost of the buntings used to decorate the auditorium?

Answer»

The Perimeter of Auditorium = (21 + 2b) units = (2 × 80 + 2 × 30)

= 160 + 60

= 220 metres

Auditorium walls have to be decorated with colour buntings = 220 × 4 = 880 metres The cost of the buntings used to decorate the auditorium = 880 × 15 = 13,220

The cost of 1 metre of bunting = Rs 15



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