Question

A hall 25 m long and 20m wide is surrounded by verandah of uniform width of 4m. Find:
a. The area of the verandah
B. The cost of flooring it at rupee 15 per square metre.

Answer 1

As there is a uniform width of 4 m the length and breadth of the hall increases by 8m. Therefore the area of verandah would be=
33×28-(25×20)
924-500
424 sq m.

The cost of flooring it would be 424×15=Rs. 6360

Answer 2

Answer:

the length is 25 m and wide is 20 m

ao then solve

l×b =25×20=500

the verandha of uniform of 4 m

so length is increase 8m and wide is 8m

then (25+8)×(20+8)

33×28=924

the area of verandha is 924-500=424

the cost of floaring at rupee 15 per square

424×15=rupees 6360 ans..