Mix Test - 8...

X and Y together can do a certain job in 10 days while X alone can do the same job in 15 days. Y alone will do the same job in :

Side of an equilateral triangle is 4 cm. Its area is

The dimensions of a rectangular iron box are l × w × h. How many times will the surface area of the iron box increase, if all its dimensions are doubled?

A tent is in the shape of a cylinder with a conical top. The radius of the base of the tent is 8 m. The height of the cylindrical part is 15 m. and that of the conical part is 24 m. Find the volume of air that occupies the tent.

If the cost of 12 apples is Rs.144, what will be the cost of 5 such apples?

If y varies directly as x and given y = 9 when x = 5, find the equation connecting x and y.

Simplify combining like terms: 3a - 2b - ab - (a - b + ab) + 3ab + b - a

Two quantities x and y are said to be in ________ if they increase (decrease) together in such a manner that the ratio of their corresponding values remains constant.

Two trains start at the same time from two station X and Y, 900 km apart; and proceed towards each other at an average speed of 38 and 22 km per hour respectively. They will meet after

The scale of a map is given as 1 : 40000000. Two cities are 4 cm apart on the map. Find the actual distance between them.