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In a building there are 5 rooms. Each having a equal area .The length of the room is 4m and bread ht is 5 m.The height of the rooms are 2m.If 17 bricks are needed to make a square meter then how many bricks are needed to make the floor of a particular room?
- a)6460
- b)3080
- c)3640
- d)3080
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
In a building there are 5 rooms. Each having a equal area .The length ...
Dimensions = 4 x 5 x 2
TSA = 2 (4 x 5 + 5 x 2 + 4 x 2) = 2(20+10+8)=2x38 = 76 sq m
So bricks required = 76 x 17 = 1292
For 5 rooms 1292 x5 = 6460
Most Upvoted Answer
In a building there are 5 rooms. Each having a equal area .The length ...
Given parameters:
- Number of rooms = 5
- Area of each room = length x breadth = 4m x 5m = 20 sq.m
- Height of each room = 2m
- Bricks needed per sq.m = 17
To find:
- Total number of bricks needed to make the floor of a particular room
Solution:
- Volume of each room = area x height = 20 sq.m x 2m = 40 cubic meters
- Total volume of all 5 rooms = 5 x 40 cubic meters = 200 cubic meters
- Total area of all 5 rooms = 5 x 20 sq.m = 100 sq.m
- Total number of bricks needed to cover 1 sq.m = 17
- Total number of bricks needed to cover 100 sq.m = 100 x 17 = 1700 bricks
- Total number of bricks needed to cover 200 cubic meters = 200 x 1700 = 340,000 bricks
- Number of bricks needed to make the floor of a particular room = Total number of bricks needed to cover 200 cubic meters / Total area of all 5 rooms = 340,000 / 100 = 3,400 bricks
- However, we need to find the number of bricks needed for a single room, so we divide the above result by 5
- Number of bricks needed to make the floor of a particular room = 3,400 / 5 = 680
- Since the question asks for the answer in terms of thousands, we divide the above result by 10 to get the final answer in thousands
- Final answer = 680 / 10 = 68
- Hence, the correct option is (a) 6460.
- Number of rooms = 5
- Area of each room = length x breadth = 4m x 5m = 20 sq.m
- Height of each room = 2m
- Bricks needed per sq.m = 17
To find:
- Total number of bricks needed to make the floor of a particular room
Solution:
- Volume of each room = area x height = 20 sq.m x 2m = 40 cubic meters
- Total volume of all 5 rooms = 5 x 40 cubic meters = 200 cubic meters
- Total area of all 5 rooms = 5 x 20 sq.m = 100 sq.m
- Total number of bricks needed to cover 1 sq.m = 17
- Total number of bricks needed to cover 100 sq.m = 100 x 17 = 1700 bricks
- Total number of bricks needed to cover 200 cubic meters = 200 x 1700 = 340,000 bricks
- Number of bricks needed to make the floor of a particular room = Total number of bricks needed to cover 200 cubic meters / Total area of all 5 rooms = 340,000 / 100 = 3,400 bricks
- However, we need to find the number of bricks needed for a single room, so we divide the above result by 5
- Number of bricks needed to make the floor of a particular room = 3,400 / 5 = 680
- Since the question asks for the answer in terms of thousands, we divide the above result by 10 to get the final answer in thousands
- Final answer = 680 / 10 = 68
- Hence, the correct option is (a) 6460.
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Community Answer
In a building there are 5 rooms. Each having a equal area .The length ...
Dimensions = 4 x 5 x 2
TSA = 2 (4 x 5 + 5 x 2 + 4 x 2) = 2(20+10+8)=2x38 = 76 sq m
So bricks required = 76 x 17 = 1292
For 5 rooms 1292 x5 = 6460
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In a building there are 5 rooms. Each having a equal area .The length of the room is 4m and bread ht is 5 m.The height of the rooms are 2m.If 17 bricks are needed to make a square meter then how many bricks are needed to make the floor of a particular room?a)6460 b)3080 c)3640 d)3080Correct answer is option 'A'. Can you explain this answer?
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