Question

a rectangular hail 18m × 15m is surrounded by a verandah 2m wide find the area of the verandah and cost of cementing it at the rate of Rs 50 per sq metre​

Answer 1

Answer:

Answer

Since, The hall is Surrounded by verandah

So, Additional increase in length will be =2∗2.5=5

Similarly , Additional increase in width will be =2∗2.5=5

So Area of Hall + Verandah =(20+5)(15+5)=25∗20=500

and Area of Hall =20∗15=300

Area of verandah =500−300=200

Rate of 1 sq metre =17.5

Rate of 200 sq metre 17.50∗200=3500