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One litre of acrylic paint can cover 16 sqm of wall area for the first coat and 24 sqm for the second coat. The walls of a lecture hall measuring 12m × 8m × 4m (L × B × H) need to be painted with two coats of this paint. The hall has total glazed fenestration area of 12 sqm. The number of 4 litre paint containers required will be __________
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- 4 to 4
- 6 to 6
- 4 to 8
- 6 to 8
Correct Option: A
4 to 4
Total area to be painted = (40 × 4 – 12) =148 m²
Paint to be used in first coat = 148/16 = 9.25 liters
Paint to be used in second coat = 148/24 = 6.16 liters
Total paint required = 9.25 + 6.16 = 15.41 liters
No. of 4 liters containers to be used = 15.41/4
= 3.85 cont ainer, which is approximately 4 containers.
