GATE CE 2019 Set 2 — Question 4
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General Aptitude → Quantitative Aptitude → Mensuration & Geometry
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Question
A retaining wall with measurements was constructed with bricks of dimensions . If of the wall consists of bricks, the number of bricks used for the construction is ______ lakhs.
Correct answer
(C) 45
Solution
1.Calculate the total volume of the retaining wall:
2.Calculate the volume occupied by the bricks ( of the wall volume):
3.Calculate the volume of a single brick (convert cm to m):
4.Calculate the total number of bricks:
5.Express the result in lakhs ():
Therefore, the correct option is (C).Continue learning with Success Tracker
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