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Total distance covered by ‘A’ = 24 × 32 = 768 km Time taken to cover 160 km = 160/20 = 8 hours Time taken to cover remaining distance = 24 – 8 = 16 hours So, required speed = {(768 – 160)/16} = 38 km/h
The perimeter of a rectangle is 120% more than perimeter of a square of side 10 cm. If the length of rectangle is 250% more than side of square then fin...
A rectangular piece of land has a perimeter of 23 metres and length of 10 metres. If the area of the land is to be divided into 3 equal portions, then w...
The curved surface area of cylinder P is 16632 cm2 whose height and radius are (y+2) and (z-7) respectively. The radius of cylinder Q is ...
The volume and height of a cylinder are 4400 cm3 and 14 cm. Find the radius of the cylinder.
If the area of a triangle is 1014 cm2 and base: corresponding altitude is 3:4, then the altitude of the triangle is:
If the perimeter of rectangle is 54 cm and its length is 3 cm more than breadth then find its area?
In the figure given below, PQRS is a parallelogram in which PN and PM are perpendicular to QR and RS, respectively. If RS = 81 cm, PM = 42 cm and PN = 5...
Outer diameter of 20 cm long pipe is 25 cm. If the thickness of the metal in the pipe is 1 cm. Find the total surface area of the pipe?
The mean proportion of 169 and 144 is:
If the edge of the cube is increased by 10%, then find the percentage increase in the volume of the cube.
