4:27 :: 9:?

27 : 9 : : 64 : ?

What is the LCM of 1/3, 5/6, 2/9 , 4/27 ?

Show that the progression 1/2, (-1)/3, 2/9, (-4)/27 , ... is a GP. Write down its first term and find the common ratio.

The L.C.M.of (1)/(3),(5)/(6),(2)/(9),(4)/(27) is (1)/(54) (b) (10)/(27) (c) (20)/(3)( d) None of these

If the ratio of the volumes of the spheres is 8:27, then the ratio of their surface areas is a )4:9 b) 9:4 c) 4:3 d 2:9

If (9^(n)xx3^(5)xx(27)^3)/(3xx(81)^4)=27 , then the value of n is