The overall width in cm of several wide-screen televisions are 97.28 cm, `98(4)/(9)` cm, `98(1)/(25)` cm and 97.94 cm. Express these numbers as rational numbers in the form `(p)/(q)` and arrange the widths in ascending order.

The length, breadth and height of a parallelopiped are 98 cm, 40 cm and 22 cm respectively. It is melted and spheres of radius 7 cm are fromed from it. Find the number of spheres that are formed.

Two metallic cones of equal radii 2.1 cm and heights 4.1 cm and 4.3 cm are metled together and recast a sphere. Find the number of sphere so formed.

The diameter of a wheel is 98 cm. The number of revolutions in which it will have to cover a distance of 1540 m is

The true value of a particular length is 4.283 cm. The three instuments A,B and C , used to measure this length give the readings 4.1 cm, 4.24 cm and 4.093cm. Arrange these readings in the increasing order of accuracy and precision. Which instrument is most reliable for measuring this length ?

Which of the following is the set of measure of the sides of a triangle? 8 cm, 4 cm, 20 cm (b) 9 cm, 17 cm, 25 cm 11cm, 16 cm, 28 cm (d) None of these

The area of a sheet of length 10.2 cm and width 68 cm addressed upto proper number of significant figures is

A picture is 60cm wide and 1.8m long. The ratio of its width to its perimeter in lowest form is

A solid metallic sphere of diameter 28 cm is melted and recast into a number of smaller cones, each of diameter 4 2/3 cm and height 3 cm. Find the number of cones so formed.

A solid cone of height 8 cm and base radius 6 cm is melted and recast into identical cones, each of height 2 cm and radius 1 cm. What is the number of cones formed ?