a rectangular hail 18m × 15m is surrounded by a verandah 2m wide find

1.	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» 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

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»

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