Question 15
If three cubes each of edge 4 cm are placed end to end, then the dimensions of resulting solid are
a) 12 cm×4 cm×4 cm
b) 4 cm×8 cm×4 cm
c) 4 cm×8 cm×12 cm
d) 4 cm×6 cm×8 cm
If the three cubes are placed end to end that means length is increased. The new cuboid having dimensions.
12 cm×4 cm×4 cm.
Hence, (a) is the correct option.