The length of a cubical hall is 12 metres. How many students can stay in this hall while each student...

The dimensions of a cinema hall are 100m,50m and 18m. How many persons can sit in the hall,if each person requires 150m^(3) of air?

The length of a rectangular hall is 4 metres less than 3 times the breadth of the hall. What is the length, if the breadth is b metres?

The length of a rectangular hall is 5 metres more than its breadth. If the perimeter of the hall is 74 metres, find its length and breadth.

The length of a rectangular hall is 5 m less than 4 times the breadth of the hall. What is the length, if breadth is x metres?

The length of a hall is 3 metres more than its breadth. If the area of the hall is 238 sq metres, calculate its length and breadth.

In how many ways can 6students sit round the table is

How many ways 3 students can be selected from 50 students ?

If = 15 students, then represents how many students ?

There are some students in the two examination halls A and B. To make the number of students equal in each hall, 10 students are sent from A to B but, if 20 students are sent from B to A, the number of students in A becomes double the number of students in B, then find the number of students in the both halls.

What is the cost of painting the two adjacent walls of a reactangular hall which has no windows or doors ? I. The area of the base of hall is 124 sq. metres. II. The breadth, length and the height of the hall are in the rato of 3:4:5. III. Area of one wall is 40 square meters.