Question

plz answer ques 3 & 4 very urgent tomorrow is exam ans using above pic with solution if u know then only answer.

Answer 1

Hii, maths aryabhatta here to solve your problem and best of luck for your exams

3)-
perimeter of floor =2(l+b)---1equation

Area of four walls =2(l+b)* h

Put the value of (l+b) from equation 1

Area of four walls =250*4

Area of four walls =1000m²

Cost of painting the walls =1000*12

Cost of painting the walls =Rs12000

4)-

As three cubes are arranged together, then a cuboid will formed of 6cm lenght and 2m breadth and 2m hieght

Then

Surface area of cuboid =2(lb+bh+hl)

Surface area of cuboid =2{(6*2)+(2*2)+(2*6)}

Surface area of cuboid =2*(12+4+12)

Surface area of cuboid =2*28

Surface area of cuboid =56

I hope this will help you

Answer 2

Hi,

Please see the attached file!

Thanks