For the following questions answer them individually
A and B together can complete a work in 12 days. A alone can complete in 20 days. If B does the work only half a day daily, then in how many days A and B together will complete the work ?
A can do a piece of work in 70 days and B is 40% moreefficient than A. The number of days taken by B to do the same workis
A right circular cylinder, a hemisphere and a right circular cone stand on the same base and have the same height. The ratio oftheir volumesis then
A cylinder has ‘r’.as the radius of the base and ‘h’ as the height. The radius of base of another cylinder, having double the volume but the same height as that of the first cylinder must be equalto
Area of the base of a pyramid is 57 sq. cm. and height is 10 cm, then its volumein $$cm^{3}$$,is
If the numerical value of the perimeter of an equilateral triangle is $$\sqrt{3}$$ times the area of it ,then the length of each side of triangle is
An equilateral triangle is drawn on the diagonal of a square. The ratio of the area of thetriangle to that of the square 1S