For the following questions answer them individually
If a person requires 36 hours to do $$\frac{4}{5}th$$ of a work the numberof additional hours required to complete the work is?
The sides of a rectangularplot of land are in the ratio 2:3 and its area is 29400 sq meters. The cost (in rupees) of the putting up a fence aroundthe plotat the rate of Rs. 50 per meter is?
A rectangular sheet of dimensions 22 m X 10 mis rolled into a cylinderso that the smaller side becomes the height. The volume of the cylinder (in cu. cm) is
In a circle of radius 7 cm, the area of a sectoris $$\frac{77}{3}$$ sq.cm. The sectorial angle is
The height of a cylindrical drumis 7 cm and the difference between the outer and inner surface areas is 44 sq cm. The thickness of the drumis? (Take $$\pi = \frac{22}{7}$$)
The smallest side of a triangle is 9 cm andits angles are $$90^\circ, 60^\circ, 30^\circ$$. Then the area of the triangle (in square centimeters)