Question

A hall is 16 m long, 14 m wide and 10 m high. There are four windows 1.3m * 1.4 m and two doors 2m * 1 m. Find the cost of whitewashing the walls at 10 per sq m and painting the doors and windows at 16 per sq m. Pls Answer!!!!!! ​

Answer 1

Answer:

6045.12 Rs

Step-by-step explanation:

Area to be white-washed = LSA of the room

= 2×(l+b)×h

= 2× (16+14) × 10

= 2×30×10 = 600 m²

Cost of whitewashing = 10 × 600 = 6000 Rs.

Cost of painting doors and windows = 16 × [{4×(1.3×1.4)} + {2×(2×1)}]

= 16×[{4×1.82} + 2×2]

= 16×[7.28+4]

=16× 11.28

= 45.12 Rs

Therefore total cost = 6000+45.12 = 6045.12 Rs

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