Question

A hall 20 metres long and 15 metres broad is surrounded by a verandah of uniform width of 4metres. The cost of flooring the verandah, at 10 per square metre is

• A. Rs.3470
• B. Rs.1800
• C. Rs. 1760
• D. Rs. 3440

Answer 1

Answer:

D. Rs. 3440

Area of the verandah = (20 + 2 × 4) (15 + 2 × 4) –20 × 15

= 28 × 23 – 20 × 15

= 644 – 300

= 344 sq.metre

Cost of flooring = 344 × 10 = Rs.3440.