A gardener wanted to reward a girl for her good deeds by giving some apples. He gave 2 apples on the first day, 4 on the second day, 8 on the third day, 16 apples on the fourth day and so on for ten days. How many apples did she get from the gardener at the end of the tenth day

The sides of 14 Square's are 11 cm, 12 cm, 13 cm, ............ 24 cm, then find the total area of 14 squares.

Raju starts walking towards south. After walking 20 m he turns towards North and Walks 8 m. Again he turns towards East and walks 5 m. How far and in which direction is he from his starting point.

The diameter of a circle is 10 cm. "P" is the point lying outside the circle. From that point "P" two tangents are drawn to the circle. the length of each tangent is 12 cm. What is the distance between "P" and the centre of the circle.

Find the unknown number

20 13 07

30 08 22

40 ? 28

Range and Range coefficient of the data -3, -2, -1, 0, 1, 2, 3 are respectively