CTS Company HR Interview Interview

A cube is cut into 216 parts.the 2nd 4th n 6th layers of the front face r removed n den painted black.
How many cubes r painted on only one side?

Read Solution (Total 4)

anybody can solve???
9 years agoHelpfull: Yes(5) No(1)

216 parts means.6*6*6 cubes ie 36 parts per layer and total of 6 layers.2nd,4th 6th blacked means 3rd 5th layers are blacked on two sides so only 1st layer is one side
blacked.ans:36
9 years agoHelpfull: Yes(1) No(1)
24+24+24=72
9 years agoHelpfull: Yes(0) No(1)
ans is 72
bcz by removing 2nd,4th and 6th layers the 3rd layer is also coated on both sides remaining 1st and 5th layers are colored one side.36*2=72
8 years agoHelpfull: Yes(0) No(3)

CTS Other Question

in a class there are 150 people who speak english n 125 people who speak hindi.55 speak both languages n atleast one student speaks one language
how many students speak atleast one language?

There are 4 cities A,B,C,D.There are 4 Routes from A to B,3 routes from B to C,and 2 routes from C to D.Then in how many different ways we can go from A to2 D
A)12 B)24 C)32 D)48