Probability of A hitting the bulb = 4/11 Probability of the bulb being broke on getting hit = 4/20 = 1/5 Probability of A breaking the bulb = (4/11) × (1/5) = 4/55
A racetrack is in the shape of a rectangle with length of 45 meters and area of 6030 m 2 . A car takes 16 seconds to make one lap around the ...
The length of a rectangle is four times its breadth. If its length is increased by 20 cm and breadth is increased by 20 cm, the area of the rectangle is...
(180/3)% of the raindrops could have been collected, when 8 cm of rain has fallen on a part of land of area 2.5 km2, in a tank having a 200 m...
The circumference of a circle is 44 cm and the length of the rectangle is 5 times the radius of the circle. Find the area (in cm2) of the rec...
If the area of a triangle is 1080 cm2 and base: corresponding altitude is 3:5, then the altitude of the triangle is:
Volume of material used in constructing a hollow cylinder of height 24 cm and thickness 1 cm is 96π. What is the sum of the internal and external radii?
A right circular cone has a height that is double its radius, and its volume is measured at 2,250π cm³. If the radius is reduced to one-third and the ...
If the volume of a sphere is 500 cm³, then find the surface area of the sphere. [Take π = 3]
Three cubes with sides 1.5 cm, 2 cm and 2.5 cm are melted to form a bigger cube. The surface area of the bigger cube is: (in cm 2)
The perimeter of a rhombus is 50 m. If one of its diagonals is 7 m, then the area of the rhombus is
