An agricultural field is in the form of a rectangle having length X1 meters and breadth X2 meters (X1 and X2 are variable). If X1 + X2 = 40 meters, then the area of the agricultural field will not exceed which one of the following values?
UPSC-2016
Let x, y be the volumes, m, n be the masses of two metallic cubes P and Q respectively. Each side of Q is two times that of P and mass of Q is two times that of. P. Let u=m/x and v=n/y. Which one of the following is correct?
UPSC-2020
A wire can be bent in the form of a circle of radius 56 cm. If it is bent in the form of a square, then its area will be
A typist uses a paper 12" by 5" length wise and leaves a margin of 1" at the top and the bottom and a margin of ½"on either side. What fractional part of the paper is available to him for typing ?
A rectangular tank measuring 5m × 4.5 m × 2.1 m is dug in the centre of the field measuring 13.5 m × 2.5 m. The earth dug out is spread evenly over the remaining portion of a field. How much is the level of the field raised ?
A circle and a rectangle have the same perimeter. The sides of the rectangle are 18 cm and 26 cm. What is the area of the circle ?
