self Maths Puzzle

Two cubes each with side b are joined to form a cuboids. What is the surface area of this cuboids?

(a)12b^2 (b)10b^2 (c)6b^2 (d)4b^2

Read Solution (Total 3)

self Other Question

The value of ( 9-22 – 9-23 ) is

(a)1 (b)8x9^-23 (c)9x9^-22 (d)none of these
If each interior angle of a regular polygon is 144o, the it is

Option
(a) Octagon
(b) Decagon
(c) Dodecagon
(d) None of these