A 30 meter deep well, with a diameter of 7 meters is dug and the earth from digging is evenly spread out to form a platform of size 22 meters by 14 meters. The height of the platform is:
Question and options
A 30 meter deep well, with a diameter of 7 meters is dug and the earth from digging is evenly spread out to form a platform of size 22 meters by 14 meters. The height of the platform is:
- 3.5 meter
- 3.75 meter
- 2.5 meter
- 3 meter
Answer and explanation
Correct answer: B - 3.75 meter
Earth volume = (22/7)*3.5^2*30 = 1155 m^3. Platform area = 22*14 = 308 m^2. Height = 1155/308 = 3.75 m.
Practice for these exams
-
JIPMAT
Related question papers
Related exam syllabi
More solved explanations in Arithmetic
- What is the sum of the integers from 1 through 50?
- The remainder when \((29^{29})^{29}\) is divided by \(9\) is
- A tradesman allows a discount of 15% on the marked price. How much above the cost price must he mark his goods to gain 19%?
- The average marks of 9 students in a group is 63. Three of them scored 78, 69, 48 marks. What are the average marks of the remaining students?
- A dishonest shopkeeper uses a weight of 800 gm for a kg and professes to sell his goods at cost price. His profit is