Question

हाउ मेनी स्क्वेयर विद डायमीटर 12 सेंटीमीटर एंड विकास फ्रॉम ए सिलेंडर विद डायमीटर 8 सेंटीमीटर एंड हाइट 90 सेंटीमीटर​

Answer 1

Let us assume that n spheres can be made

Cylinder D=8cm and h=90cm

r=4cm

volume of cylinder V=πr

2

h

V=π×4×4×90=1440π

As D=12cm so r=6cm

Now volume of one sphere

V

′

=

3

4

πr

3

=

3

4

×π×6×6×6=288π

As there are n spheres

n×288π=1440π

n=5

There can be five sphere can be made from cylinder.