Question
Find the median of the following observations: 16, 12,
18, 22, 20, 19, 17Solution
Ascending order of observations: 12, 16, 17, 18, 19, 20, 22
Number of observations = 7 (odd number).
Median formula for odd observations:
Median = [(n + 1) Γ· 2]th term
For n = 7, the 4th term is 18.
The perimeter of a rectangular field is 20 metres and its area is 18 m2 . What is the length of the diagonal of this field?
A well with 30 metre inner diameter is dug 6 m deep. Earth taken out of it, has been evenly spread all around it to a width of 15 m to form an embankmen...
Water flows into a tank which is 200m long and 120 m wide, through a pipe of cross- section 0.3 m × 0.2 m at 20 km/hr. then the time ( in hr) for ...
The radius of a cylinder is the same as the radius of a circle whose circumference is 176 units. If the height of the cylinder is 25% more than its radi...
Determine the slant height of a cone with a volume of 1,884 cmΒ³ and a base radius of 15 cm. (Use Ο = 3.14)
If the height of a cylinder becomes double and radius decreases by 50%, then what is the percentage change in its volume?
An iron pillar consists of two parts: one in the shape of a right circular cylinder and the other in the shape of a right circular cone. The radius of b...
The cost of fencing a rectangular field at the rate of Rs. 5 per meter is Rs.350. If the length of the field is 15 meters more than its breadth, then fi...
A circular garden has radius 21 m. A path 7 m wide is built outside it all around. What is the area of the path?
A rectangular garden is 30 m long and 24 m wide. A path of uniform width 2 m is built inside along the boundary of the garden. Find the area of the path.
Relevant for Exams:
