top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

How many coins of 1.4 cm in diameter and 0.4 cm thick are to be melted to form a right circular cylinder of.............

0 votes
335 views

How many coins of 1.4 cm in diameter and 0.4 cm thick are to be melted to form a right circular cylinder of height 16 cm and diameter 3.5 cm?

posted Feb 7, 2020 by Simranjeet Singh

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

250


Volume of cylinder/Volume of coin= R^2*H / (r^2*h)=1.75^2*16 / (0.7^2*0.4)=250

answer Feb 7, 2020 by Hanifa Mammadov



Similar Puzzles
0 votes

Three cylinders of height of 8 cm and diameters 0.24 m, 0.28 m and 0.16 m respectively are melted to form spherical solid balls of diameter 4 cm, then how many number of balls thus formed?

+1 vote

A metal cylinder of base 5 cm and height 12 cm is melted to make n solid cones of height 1 cm and base radius 1 mm.
What is the value of n?

–1 vote

A bag contains Rs.1800 in form of one rupee, 50-paise and 25 paise coins in the ratio 3:4:12. How many coins are there of 25 paise?

0 votes

Two metallic right circular cones having their height 4.1 cm and 4.3 cm and the radii of their bases 2.1 cm each, have been melted together and recast into a sphere.

What would be the diameter of the resultant sphere?

...