nth term of an AP is 0. If AP is 63, 60, 57…, then find the value of n.
Calculate the mean of these numbers:
18, 14, 22, 16, 20, 12
The 4th term of an AP is 17 and the 9th term is 42. Find the sum of the first 20 terms.
A ball is thrown from a height of 900 m on the ground. It bounces (2/3)Â times of its every last bounce. Find the total distance covered by the ball ti...
The area of a square is 900 cm2 which is 120 cm2 less than that of a rectangle. Find the perimeter of the rectangle if the length ...
Find the mode of the following data:
What is the mode of the given data?
5, 7, 9, 7, 3, 7, 5, 7, 8, 6, 7
The data given below shows the marks obtained by 12 different students in an exam.
Marks obtained: 18, 22, 25, 28, 35, 39, 47, 50, 50, 64, 65, 85...
Find the standard deviation of the following data (rounded of the two decimal places).
5,3,4,7
A, B and C invested in partnership. A invest Rs.9000 for 5 months, B invests Rs.7000 for 3 months and C invests Rs.12000 for 2 months. C is working part...
