The sum of the squares of two natural consecutive odd numbers is 394. The sum of the numbers is –

Directions: Given bar graph shows the number of plain books and lined books (in hundreds) available at three different stores and the table shows the percentage of total books (Plain + lined) that was sold by different stores.

The average of total books sold by stores B and C together is how much more than the total unsold books of store A. 

While going to office, Sneha travels at a speed of 10 km/h and on her way back, she travels at a speed of 15 km/h. What is her average speed for the whole journey?

What is the area (in cm² ) of an equilateral triangle of side 20 cm?

Find the number of diagonals of a regular polygon, sum of whose interior angles is 2700⁰.

Direction: Study the given pie chart carefully and answer the following questions accordingly. Given pie chart shows the percentage of players taking part in six different games in an event.

Total number of Players = 1800

If two - ninth of the players taking part in Boxing is female, then the number of male Boxing players is approximately what percentage of the total number of players taking part in Athletics?

In an alloy, zinc and copper are in the ratio 1 : 2. In the second alloy the same elements are in the ratio 2 : 3. In what ratio should these two alloys be mixed to form a new alloy in which the two elements are in ratio 5 : 8?

At what rate of simple interest will a sum of money double in 8 years?