Question
Sudhir is 4.5 times as efficient as Aarav. If they work
together, they can complete a piece of work in 8 days. How many days will Aarav take to do the same work alone?Solution
Efficiency of Sudheer and Aarav=4.5 and 1. Sudheer       Aarav 4.5             1 They work together with total efficiency – 4.5+1=8days. Total work =8×5.5=44unit. Aarav takes time the complete work =44/1=44days.
The length of a plot is three times its breadth. A playground measuring 150 square metres occupies half of the total area of the plot. What is the lengt...
The perimeter of a rectangular field is 44 metres and its area is 114 m2 . What is the length of the diagonal of this field?
The ratio of males and females in a zoo is 6:7 respectively and the percentage of children among males and the percentage of children among females are ...
A street of width 25 metres surrounds from outside a rectangular garden whose measurement is 190 m × 220 m. The area of the path (in square metres...
Four circles of equal radii are described about the four corners of a square so that each touches two of the other circles. If each side of the square i...
If the length of the rectangular pipe is 2 times of its breadth and 5 times of its height. Find the total surface area if its volume is 600 cmÂł?
A cone has a height of 28 cm. A sphere is melted to form this cone. If the radius of the sphere is 7 cm, find the radius of the base of the cone.
Perimeter of square is 48 cm and length of a rectangle is equal to side of square and breadth of rectangle is 4 cm less than length of the rectangle. F...
The sum of the area of rectangle A and B is 2964 cm 2 . The ratio between the breadth of rectangle A and length of rectangle B is 2:3 respect...
A man distributes 10%, 18% and 22% of his salary into his three children who spend 40%, 60% and 25% of that amount respectively. The difference between ...
