Question

5. The radii of two cones are in the ratio of 2:3 and their heights are in the ratio of 7:3. The ratio of their
volumes is
a) 20:9
b) 28:9
c) 29:29 d) None of these
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Answer 1

Answer:

Step-by-step explanation:

given the radii of the cones in the ratio=2:3

heights =7:3

the volume of a cone=1/3*(22/7)*(r^2)*h

so

square the radii=4:9

so the volume of the two cones ratio=r1^2*h1/r2^2*h2

=(4/9)*(7/3)

=28/27

answer:d

Answer 2

Answer:

d. none of these

Step-by-step explanation:

according tp quest. volune should also be in 7:3... but i dont get any option like this.. hence umyour d option is correct