Mathematics
The following data have been arranged in ascending order of magnitude.
63, 66, 69, x, x + 2, 76, 89 and 103.
If the median of the given data is 71, find the value of x.
Related Questions
The mean of a certain number of observations is 35. What is the new value of the mean if each observation is :
(i) increased by 7.
(ii) decreased by 5.
(iii) multiplied by 2.
(iv) divided by 5.
(v) increased by 20%.
(vi) decreased by 30%.
Find the median of 17, 26, 60, 45, 33, 32, 29, 34 and 56. If 26 is replaced by 62, what will be the new median ?
(a) An isosceles right-angled triangle has area 200 cm2. What is the length of its hypotenuse?
(b) The perimeter of a triangle is 540 m and its sides are in the ratio 12 : 25 : 17. Find the area of the triangle.
(c) Find the area of triangle whose sides are 5 cm, 12 cm and 13 cm. Also, find the length of its altitude corresponding to the longest side.
(a) The diagonals of a rhombus are 24 cm and 10 cm. Calculate its area and perimeter.
(b) The diagonals of a field in the form of a quadrilateral are 106 m and 80 m and intersect each other at right angles. Find the cost of cultivating the field at the rate of ₹ 25.50 per 100 m2.