Question
Ashish and Anil can do a piece of work in 12 days and 16
days respectively. Ashish completed 25% of the work. Find the time taken by Anil to complete the remaining work.Solution
Let the total work be (LCM of 12 and 16) = 48 units Efficiency of Anil = 48/16 = 3 units/day Remaining work = 48 x 0.75 = 36 units Time taken by Anil to complete the remaining work = 36/3 = 12 days
If the ratio of areas of two circle is 36:49, then the ratio of their circumferences will be:
The angle of elevation of the top of a tower from a point on ground which is 30 mtrs. away from the foot of the tower is 30°. Height of the tower is:
Perimeter of a square shaped plot is 96 metres and the area of a rectangular plot is 65% more than that of the square shaped plot. Find the area (in m
A maximum size sphere is cut from a hemisphere of radius r. Find the ratio of volume of hemisphere to sphere?
The volume of a solid cube is 729 m3. If whole cube is to be painted at a rate of Rs. 8 per m2, then what will be the cost of pain...
The sum of the perimeters of a square and a rectangle is 120 metres. If the sum of the length and breadth of the rectangle is 32 cm, then find the area ...
If the word PHOTOGRAPH is spelt with ‘F’ in place of ‘PH', then what would be the percentage reduction in the number of letters?
The length of the diagonal of a rectangle is 26 cm, and one side is 10 cm. The area of the rectangle is:
The length of a rectangle is extended by 26%, while its width is reduced by 26%. What is the percentage change in the area of the rectangle as a result ...
- A cone has a radius of 18 cm and its curved surface area is 1980 cm². Find its height.
Relevant for Exams:
