Question
The speed of the boat in still water is 10 km/h
and the speed of the stream is 6 km/h. A boat goes 48 km downstream with its usual speed but at the time of returning the speed of the boat in still water is tripled. Find the total time taken by boat to cover the whole distance.Solution
If base of a prism is square of side 12 cm & height is 22 cm . What is the volume of prism?
Number p is 15% more than 150. If k is 15% less than p, then k is equal to:
The volume of a cylinder is given as 6160 cubic centimeters. The height of this cylinder is proportionally 5/7 of its radius. Could you determine the co...
A wire is in the form of square with side 11 cm. It is bent to form a circle. What is the radius of the circle?
All the four lateral walls and the ceiling of a room of length 10 ft, breadth 7 ft and height 5 ft are to be painted. The total cost of painting is Rs. ...
The value of (sin23° / cos67°) + (cos71° / sin19°) is:
Two right circular cones of equal height of radius of base 3cm and 4cm are melted together and made into a solid sphere of radius 5 cm. The height of th...
The circumference of a circle is equal to the perimeter of a rectangle whose length and breadth are in ratio 10:11, respectively. If the area of the rec...
The volume of a cube is 64 cm³. If the cost of painting the cube is Rs. 15 per cm², then find the cost of painting five faces of the cube.
When the breadth of a rectangle is reduced by 4cm (keeping the length constant), its area reduces by 72 cm2 and when the length is reduced by...