Question

From each corner of a square sheet of side 10 cm, a square of side S cm is cut, when S is an integer. The remaining sheet is folded into a cuboid of volume C cubic cm. Which of the following cannot be a value of C?

Answer 1

C=Base area*height
C=`(10-2s)^2*s`
now, just put the values o S in given equation C
put S=1
Then C=64
put S=2
then C=72
put S=3
Then C=48
put S=4
then C=16
further the value of S is not possible because volume can never be zero or negetive.
volume can not be 30 units.