Question

The heights of two cylinders are in the ratio 5:3 and their volumes are in the ratio 4:15. Then the ratio of their radii is The heights of two cylinders are in the ratio 5:3 and their volumes are in the ratio 4:15. Then the ratio of their radii is *

Answer 1

Step-by-step explanation:

r

1

:r

2

=4:5

h

1

:h

2

=5:6

∴V

1

:V

2

=π×4×5:π×5

2

×6 (V=πr

2

h)

=π×16×5π×25×6

=80π:150π

=8:15