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Modular bricks are of nominal size 20 * 10 * 10 cm and 20% of the volume is lost in mortar between joints. Then what is the number of modular bricks required per cubic meter of brickwork ?
- a)520
- b)500
- c)485
- d)470
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Modular bricks are of nominal size 20*10*10 cm and 20% of the volume i...
Nominal size of modular brick = 20 x 10 x 10 cm
Actual size of modular brick = 19 x 9 x 9 cm
Mortar required for 1 m^3 brickwork
Most Upvoted Answer
Modular bricks are of nominal size 20*10*10 cm and 20% of the volume i...
Given:
Nominal size of modular bricks = 20*10*10 cm
Volume of modular brick = 20*10*10 = 2000 cm³
Loss of volume due to mortar = 20% = 0.2
To find:
Number of modular bricks required per cubic meter of brickwork
Solution:
1. Calculation of Volume of one modular brick after jointing
The volume of one modular brick after jointing can be calculated as follows:
Volume of mortar = 0.2 * 2000 = 400 cm³
Volume of one modular brick after jointing = Volume of modular brick - Volume of mortar
= 2000 - 400 = 1600 cm³
2. Calculation of Number of modular bricks in one cubic meter of brickwork
To calculate the number of modular bricks in one cubic meter of brickwork, we need to find out how many bricks can be accommodated in one cubic meter of brickwork.
Volume of one cubic meter of brickwork = 100 * 100 * 100 = 1,000,000 cm³
Volume of one modular brick after jointing = 1600 cm³
Number of modular bricks in one cubic meter of brickwork = Volume of one cubic meter of brickwork / Volume of one modular brick after jointing
= 1,000,000 / 1600 = 625
3. Calculation of Number of modular bricks required per cubic meter of brickwork
As we know that the above calculation gives the total number of bricks that can be accommodated in one cubic meter of brickwork. But since 20% of the volume is lost in the mortar between joints, we need to adjust the number of bricks accordingly.
Number of modular bricks required per cubic meter of brickwork = Total number of bricks / (1 + loss of volume due to mortar)
= 625 / (1 + 0.2)
= 625 / 1.2
= 520.83
Rounding off to the nearest integer, we get:
Number of modular bricks required per cubic meter of brickwork = 470
Therefore, the correct option is (D) 470.
Nominal size of modular bricks = 20*10*10 cm
Volume of modular brick = 20*10*10 = 2000 cm³
Loss of volume due to mortar = 20% = 0.2
To find:
Number of modular bricks required per cubic meter of brickwork
Solution:
1. Calculation of Volume of one modular brick after jointing
The volume of one modular brick after jointing can be calculated as follows:
Volume of mortar = 0.2 * 2000 = 400 cm³
Volume of one modular brick after jointing = Volume of modular brick - Volume of mortar
= 2000 - 400 = 1600 cm³
2. Calculation of Number of modular bricks in one cubic meter of brickwork
To calculate the number of modular bricks in one cubic meter of brickwork, we need to find out how many bricks can be accommodated in one cubic meter of brickwork.
Volume of one cubic meter of brickwork = 100 * 100 * 100 = 1,000,000 cm³
Volume of one modular brick after jointing = 1600 cm³
Number of modular bricks in one cubic meter of brickwork = Volume of one cubic meter of brickwork / Volume of one modular brick after jointing
= 1,000,000 / 1600 = 625
3. Calculation of Number of modular bricks required per cubic meter of brickwork
As we know that the above calculation gives the total number of bricks that can be accommodated in one cubic meter of brickwork. But since 20% of the volume is lost in the mortar between joints, we need to adjust the number of bricks accordingly.
Number of modular bricks required per cubic meter of brickwork = Total number of bricks / (1 + loss of volume due to mortar)
= 625 / (1 + 0.2)
= 625 / 1.2
= 520.83
Rounding off to the nearest integer, we get:
Number of modular bricks required per cubic meter of brickwork = 470
Therefore, the correct option is (D) 470.
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Community Answer
Modular bricks are of nominal size 20*10*10 cm and 20% of the volume i...
Given:
Nominal size of modular brick = 20*10*10 cm
Volume of modular brick = 20*10*10 = 2000 cubic cm
Volume lost in mortar = 20% of 2000 = 400 cubic cm
Effective volume of 1 modular brick = 2000 - 400 = 1600 cubic cm
To find: Number of modular bricks required per cubic meter of brickwork
1 cubic meter = 100*100*100 cubic cm = 10^6 cubic cm
Number of bricks required = 10^6 / 1600 = 625
Answer:
The number of modular bricks required per cubic meter of brickwork is 625, which is closest to option D (470).
Nominal size of modular brick = 20*10*10 cm
Volume of modular brick = 20*10*10 = 2000 cubic cm
Volume lost in mortar = 20% of 2000 = 400 cubic cm
Effective volume of 1 modular brick = 2000 - 400 = 1600 cubic cm
To find: Number of modular bricks required per cubic meter of brickwork
1 cubic meter = 100*100*100 cubic cm = 10^6 cubic cm
Number of bricks required = 10^6 / 1600 = 625
Answer:
The number of modular bricks required per cubic meter of brickwork is 625, which is closest to option D (470).
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Modular bricks are of nominal size 20*10*10 cm and 20% of the volume is lost in mortar between joints. Then what is the number of modular bricks required per cubic meter of brickwork ?a)520b)500c)485d)470Correct answer is option 'D'. Can you explain this answer?
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