Class 10 Exam  >  Class 10 Questions  >  A rectangular plot is of length 28 m and widt... Start Learning for Free
A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is (take π = 22/7)
  • a)
    10.5 cm
  • b)
    10.9 cm
  • c)
    9.9 cm
  • d)
    9.5 cm
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A rectangular plot is of length 28 m and width 14 m. A conical pit of ...
Π ≈ 3.14)

The area of the rectangular plot is 28 x 14 = 392 square meters.
The volume of the conical pit is (1/3) x π x (7/2)^2 x 3 = 91.88 cubic meters.
The soil dug out from the pit will cover an area of π x (7/2)^2 = 38.47 square meters.
The remaining area of the plot is 392 - 38.47 = 353.53 square meters.
The volume of soil added to the remaining plot is 91.88 cubic meters.
To find the increment in the level of the remaining plot, we need to divide the volume of soil added by the area of the remaining plot: 91.88 / 353.53 ≈ 0.26 meters.
Therefore, the best approximation value of the increment in the level of the remaining plot is 0.26 meters.
Free Test
Community Answer
A rectangular plot is of length 28 m and width 14 m. A conical pit of ...
OP = r = 7/2
OQ = 3
area of top circular surface of pit = 

= 38.5 m2
area of the plot on which dug soil is spreaded = 28 × 14 – 38.5 = 353.5 m2
volume of dug soil = 
∴ value of increment in the level of remaining plot = 
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
Explore Courses for Class 10 exam

Top Courses for Class 10

A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer?
Question Description
A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A rectangular plot is of length 28 m and width 14 m. A conical pit of diameter 7 m and depth 3 m with its flat surface upward and vertex downward is dug at one corner of the plot. The soil dug out is spread uniformly over the remaining area of the plot. The best approximation value of the increment in the level of the remaining plot is(takeπ = 22/7)a)10.5 cmb)10.9 cmc)9.9 cmd)9.5 cmCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 10 tests.
Explore Courses for Class 10 exam

Top Courses for Class 10

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev