Question
Ratio of the work done by P, Q and R in one day is 4:2:5
respectively. They all together can complete the work in 35 days. Q and R worked on it for 23 days. In how many days P will complete the remaining work.Solution
Let total amount work be = 35 x 11 = 385 units Amount of work done by Q and R in 23 days = 23 x 7 = 161 units Amount of work left = 385 – 161 = 224 Required time = 224/4 = 56 days
A cone is parallel to its base in such a way that the volume of the smaller cone is  1/2197 times of the bigger cone. Find the height of the smaller co...
An army of 2100 men has provision for 50 days. After 10 days due to injuries some of them left and the food were now enough for next 50 days for remaini...
The total surface area of a cube is given as 216 cm². The radius of a cone is twice the length of the edge of the cube, and the height of the cone is 1...
If the curved surface area and the radius of a cylinder are 550 cm2 and 7 cm, respectively, then find the volume (in cm3) of the c...
An iron pillar consists of two parts: one in the shape of a right circular cylinder and the other in the shape of a right circular cone. The radius of b...
Water flows at the rate of 10 meter per minute from a cylindrical pipe 5mm in diameter. How long it takes to fill up a conical vessel whose diameter at ...
- The volume of a cube is 1331 cm³. If the cost of painting the cube is Rs. 7 per cm², then find the cost of painting five faces of the cube.
The length of a rectangular garden is 18 metres and its breadth is 9 metres. Find the length of the diagonal of a square garden having the same area as ...
If the area of a circle is 154 cm², then the circumference of the circle is:
The sum of the monthly incomes of ‘A’, ‘B’ and ‘C’ is Rs. 50000 which is 4 times the monthly income of ‘C&rsqu...
Relevant for Exams:
