If the length of one side and the diagonal of a rectangle are 7 cm and 25 cm respectively, then find its perimeter (in cm).

A plan flies a distance of 1800 km in 5 hours. What is its average speed in meters/second?

The ratio of the areas of two circles is 16: 25. What will be the ratio of their circumferences?

The distribution of fruit consumption in a sample of 72 seventeen – year – old girls is given in the graph below. Study the graph and answer the questions.

Distribution of Fruit Consumption

How many of these girls ate more than tow serving but less than six serving per day?

If three numbers are in the ratio 2:3:5 and the twice their sum is 100. Find the square of the largest of the three numbers.

A sum of money becomes 3 times in 12 years. In how many years it will become 5 times at the same rate of simple interest?

The sum of three numbers is 116. The ratio of second to the third is 9 : 16 and the first to the third is 1 : 4 The second number is 

Directions-Study the following diagram and answer the four questions.

The total no. of students on whom this survey was made is