PYQ Vault
EbooksTutor

Area of the four walls of a room = 2h(l + b)

This type of question, asked 3 times: CDS 2 2016, CDS 1 2018, CDS 2 2018. All 3 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    CDS 2 2016

    41
    The area of four walls of a room is 120 m2120\ \text{m}^2. The length of the room is twice its breadth. If the height of the room is 4 m, what is area of the floor ?

    Tap an option to check your answer.

  2. Question 2

    CDS 1 2018

    84
    Walls (excluding their roofs and floors) of 5 identical rooms having length, breadth and height 6 m, 4 m and 2.5 m respectively are to be painted. Paints are available only in cans of 1 L and one litre of paint can be used for painting 20 square metres. What is the number of cans required for painting ?

    Tap an option to check your answer.

  3. Question 3

    CDS 2 2018

    73
    Walls (excluding roofs and floors) of 5 identical rooms having length, breadth and height 6 m, 4 m and 2.5 m respectively are to be painted. Out of five rooms, two rooms have one square window each having a side of 2.5 m. Paints are available only in cans of 1 litre; and 1 litre of paint can be used for painting 20 square metres. The number of cans required for painting is

    Tap an option to check your answer.