TCS Company Numerical Ability Data Interpretation

A cube is painted red on two adjacent faces and on one opposite face, yellow on two opposite faces and green on the remaining face. It is then cut in to 64 equal cubes.
Q. How many cubes have only one red colored face ?

1) 4
2) 8
3) 12
4) 16

Read Solution (Total 7)

12 cubes have only one red coloured face
10 years agoHelpfull: Yes(8) No(1)

plz explain how it is 12??
10 years agoHelpfull: Yes(3) No(0)
12...only if we considered only red face (no other coloured face)
10 years agoHelpfull: Yes(2) No(0)
16 cubes becoz 3*3 vetical and horizontal grids at each face
10 years agoHelpfull: Yes(1) No(1)
The answer is c)12
10 years agoHelpfull: Yes(0) No(1)
pls explain it....
7 years agoHelpfull: Yes(0) No(1)
answer is 4.
suppose the surface area of the cube that is painted red is
+ + + +
+ * * +
+ * * +
+ + + +
the "+" are those cubes which are two side painted and the * are the cubes which are only one side painted .look at the diagram and relate with the surface of a cube that is painted by red colour and you can understand it.
6 years agoHelpfull: Yes(0) No(1)

TCS Other Question

Q).A Bag contains P white and Q black balls. Two players A and B alternately draw a ball from the bag, replacing the balls each time after the draw till one of them draws a white and wins the games. If A begins the game and the probability of A winning the game is 3 times that of B, than of the ratio P : Q is

a)3:4
b)4:3
c)2:1
d)1:2 Q). Number of prime factors in (216)^3 / 5 x (2500)^2 / 5 x (300)^1 / 5 is :
Option
1) 3
2) 4
3) 6
4) 7