Railways Exam  >  Railways Questions  >   A solid metallic cone of height 10 cm and ra... Start Learning for Free
A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?
  • a)
    25
  • b)
    50
  • c)
    125
  • d)
    75
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A solid metallic cone of height 10 cm and radius of base 20 cm is mel...
Volume of cone = 1/3πr2h
=(1/3)×π×(20)2×10
=400×10
=(π/3)×4000=(4000/3)π
Volume of spherical balls = 4/3πr3
=(4/3)×π×(2)2
= 32/3π
∴ Spherical balls are formed from the cones.
∴ Total volume of all spherical cones = Volume of cones.
∴ No. of spherical balls = Volume of cone/Vol of 1 spherical ball
=4000/3
=32/3
=4000/32=125
View all questions of this test
Explore Courses for Railways exam
A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer?
Question Description
A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer?.
Solutions for A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways. Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free.
Here you can find the meaning of A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer?, a detailed solution for A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A solid metallic cone of height 10 cm and radius of base 20 cm is melted to make spherical balls each of 4 cm diameter. How many such balls can be made?a)25b)50c)125d)75Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Railways tests.
Explore Courses for Railways exam

Top Courses for Railways

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