The areas of the three adjacent faces of a rectangular box which meet in a point are known. The product of these areas is equal to
the volume of the box
twice the volume of the box
the square of the volume of the box
cube root of its volume
Correct Answer : C
The diagonal of a square field is 110 m. Its area is
The ratio in which the line segment joining P (3. –4) and Q(6, 7) is divided by x axis is
P (-4, b) and Q(2,b+2) are 2 points and the co-ordinates of the middle point of PQ are (-2,2) .The value of b is