Question

A solid metal cylinder is of base radius 18 centimeters and height 40
centimeters. By melting this down, how many cylinders of base radius
2 centimeters and height 5 centimeters can be made.​

Answer 1

Answer:

unlock 35 lakh questions

answr

Whats your doubt?

search

Maths

A solid metalic cylinder of base radius 3 cm and height 5 cm is melted to form cones. each of height 1 cm and base radius 1 mm. The number of cones is

Answer

Open in answr app

Correct option is

D

13500

Radius of cylinder=3cm.

Height=5cm

radius of cone= 1mm=0.1cm

height=1 cm

Volume of cylinder = number of cones* Volume of cone

ΠR

2

h=n∗

3

1

Πr

2

h

Π3

2

∗5=n∗

3

1

Π∗0.1

2

∗1

45=n∗

3

1

∗(.1)

2

∗1

45=n∗

300

1

n=13500