Cost of Painting, Laminating

Q.

Question 8

Find the cost of polishing a circular table-top of diameter 1.6 m, if the rate of polishing is $₹15/m^2$
$(Take\pi =3.14)$

Q.

A hallway measuring $90\text{feet}$ by $7\text{feet}$ requires $\frac{1}{2}$ a fluid ounce of cleaning solution per square foot. How much cleaning solution is required to clean the hallway?

Q.

Question 7 (ii)

Through a rectangular field of length 90 m and breadth 60 m, two roads are constructed which are parallel to the sides and cut each other at right angles through the center of the fields. If the width of each road is 3 m, find:
The cost of constructing the roads at the rate of ₹ 110 per $m^2$

Q.

Two and a half liters of paint are used to cover $725m^2$ of area. How much will be required to paint $2001m^2$ of area ?

Q. A door of dimensions 3m * 2m is on the wall of dimension 10m *10m. Find the cost of painting the wall if rate of painting is rs 2.50 per sq.m

Q. A gift box is in the shape of a cube whose side is 0.5 m. A wrapper used to pack the entire box and its cost is ₹20 per m². Find the total cost of the wrapper

1. ₹25
2. ₹30
3. ₹35
4. ₹40

Q.

The total surface area of a cubical chalk box is 96 cm². What is the length of its edge?

Q.

The area of a rectangular field is $465m^2$ and its length is $31m$. Find the

a) breadth of the field

b) cost of fencing it at the rate of ₹$15.50permetre$.

Q. One meter wide path is built inside a square park of side 30 m along its sides. The remaining part of the park is covered by grass. If the total cost of covering by grass is Rs 1176, find the rate per square metre at which the park is covered by the grass.

Q. A room is 9 m long, 8 m broad and 6.5 m high. It has one door of dimensions 2 m × 1.5 m and three windows each of dimensions 1.5 m × 1 m. Find the cost of white washing the walls at Rs 3.80 per square metre.

Q.

A rectangular park is 40m wide and 35m long. A path 2.5m wide is constructed outside the path. Find the area of the path. [4 MARKS]

Q. How much does the area of a square reduce with respect to its original area when the length of its side is halved?

Q. A room is 9 m by 8 m by 6.5 m. It has one door of dimensions (2 m × 1.5 m) and four windows each of dimensions (1.5 m × 1 m). Find the cost of painting the walls at Rs 50 per m².

Q. A room is 8.5 m long, 6.5 m broad and 3.4 m high. It has two doors, each measuring (1.5 m by 1 m) and two windows, each measuring (2 m by 1 m). Find the cost of painting its four walls at Rs 160 per m².

Q.

Find the perimeter of a park that is $63m$ long and $27m$ wide. Find the cost of fencing the park with a steel wire if the rate of fencing is $₹5$ per metre.

Q.

Find the cost of putting grass beds on a pathway having area of 200 square meters at 0.1 paise per square cm.

1. Rs. 2000

2. Rs. 20

3. Rs. 200

4. Rs. 20000

Q.

A path $ 1 m$ wide is built along the border and inside a square garden of side $ 30 m$. Find: (i) the area of the path (ii) the cost of planting grass in the remaining portion of the garden at the rate of$ ₹40$ per $ {m}^{2}$

30 m Ww o€ 

Q.

The length and the breadth of a rectangular piece of land are 500 m and 300 m respectively. Find

(i) it’s area
(ii) the cost of the land, if $1m^2$ of the land costs ₹10, 000.

Q. The circumference of a circle is equal to the side of a square whose area measures 407044 sq. cms. What is the area of the circle ?
Is it possible to solve this question using digital root method?

1. 22583.2 sq. cms
2. 32378.5 sq. cms
3. 41263.5 sq. cms
4. 39483.4 sq. cms
5. Cannot be determined

Q. The area of the 4 walls of a room is 77 m². The length and breadth of the room are 7.5 m and 3.5 m respectively. Find the height of the room.

Q.

To get the wall (8 m $\times$ 4 m) as shown in the figure painted, if the cost of painting per square metre is ₹5, then how much will it cost to paint the wall? The dimensions of the door are 2.4 m and 1.2 m.( The door is not to be painted)

1. ₹ 160.00

2. ₹ 166.60

3. ₹145.60

4. ₹ 156.00

Q.

A local park is 32 m long and its width is half of the length. It has two right-triangular grass lawns with the following dimensions. The local gardener wanted to renovate the park so he hired some men. The men agreed to work on the grass lawn at ₹​ 1.2 per sq metre and put new footpath at ₹ 0.80 per sq metre. What is the total cost the gardener will have to pay after the work is done?

1. ₹​ 431.2

2. ₹​ 368.4

3. ₹​ 421.8

4. ₹​ 512

Q. The area of four walls of a room is 120 m². If the length of the room is twice its breadth and the height is 4 m, find the area of the floor.

Q. A lane 180 m long and 5 m wide is to be paved with bricks of length 20 cm and breadth 15 cm. Find the cost of bricks that are required, at the rate of Rs 750 per thousand.

Q. A verandah is 40 m long and 15 m broad. It is to be paved with stones, each measuring 6 dm by 5 dm. Find the number of stones required.

Q.

There is a square park in a society of side 7 m. What is the cost of laying bricks in the park at the rate of ₹ 10 / m².

1. 470

2. 440

3. 490

4. 500

Q.

If the cost of levelling a triangular field at the rate of ₹20 per square meter is ₹9600, then the area of the field is ___ sq m.

1. 480
2. 450
3. 430
4. 400

Q. A door of dimensions 3 m × 2m is on the wall of dimension 10 m × 10 m. Find the cost of painting the wall if rate of painting is Rs 2.50 per sq. m.

Q.

Find the cost of putting grass beds on a pathway having area of 200 square meters at 0.1 paise per square cm.

1. Rs. 2000

2. Rs. 20000

3. Rs. 20

4. Rs. 200

Q. A door of length 4 m and breadth 3m is fixed in a square wall of length 5 m. Find the cost of painting, if the rate of painting the wall is ₹10 per square metre and the door is ₹40 per square metre.

1. ₹130
2. ₹480
3. ₹610
4. ₹710