Chapter 13 – Surface Areas and Volumes

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2. The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and ceiling at the rate of Rs 7.50 per m^2.
17
Oct
2. The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and ceiling at the rate of Rs 7.50 per m^2. 2. The length 4 m and 3 m respectively. Find the cost of white washing the [...]
Posted in: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,
Tags: 2. The length , 4 m and 3 m respectively. Find the cost of white washing the walls of the room and ceiling at the rate of Rs 7.50 per m^2. , breadth and height of a room are 5 m ,
1. A plastic box 1.5 m long, 1.25 m wide and 65 cm deep, is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine: (i)The area of the sheet required for making the box. (ii)The cost of sheet for it, if a sheet measuring 1m2 costs Rs. 20.
17
Oct
1. A plastic box 1.5 m long, 1.25 m wide and 65 cm deep, is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine: (i)The area of the sheet required for making the box. (ii)The cost of sheet for it, if a sheet measuring 1m2 [...]
Posted in: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,
Tags: 1. A plastic box 1.5 m long , 1.25 m wide and 65 cm deep , determine: (i)The area of the sheet required for making the box. (ii)The cost of sheet for it , if a sheet measuring 1m2 costs Rs. 20. , is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet ,