In field experimentation, local control is a device to maintain
Local control is a device to reduce or control the variation due to extraneous factors and increase the precision of the experiment.
A barrel has 140 liters of mixture of alcohol and water, in which water is 10%. 30 litre of this mixture was taken out and replaced with “X”...
If √̅1̅2̅-̅2̅√̅3̅5̅ + √̅8̅+̅2̅√̅1̅5̅ = √a + √b, where a and b are positive integers, then the value o...
The average weight of a group of five persons, A, B, C, D, and E is 78 kg. If another person K joins the group then the average weight of the group is d...
The perimeter of 4 squares is 16 cm, 32 cm, 36 cm and 44 cm respectively. What will be the area of the square having perimeter equal to sum of edges of ...
A sum of Rs.10600 is to be divided among 6 brothers, 5 sisters and 3 aunts. If each sister receives four times as much as each aunt and each brother rec...
The circumference of a circle is 33 cm and the length of the rectangle is 8 times the radius of the circle. Find the area (in cm2) of the rec...
The ratio of the length to the breadth of a rectangular park is 3:2. If a man cycling along the boundary of the park at the speed of 18 km/hr completes...
The ratio of the number of English books to Hindi books in a library shelf is 5:3. If 108 Hindi books are written by Pradeep, which constitutes 36% of t...
The base of a triangular field is 400 metres and its height 250 metres. Find the area of the field and also calculate the charges for supplying water to...
Point (4, 5) is the centre of a circle. A point (9, 11) is lying on a circle. Find the area of the circle.
