For the following questions answer them individually
5 women and 28 men can do a piece of work in 25 days. If women are found 40% more efficient in that work than men, the time (in days) required for 10 women and 11 men to complete 5 times that work, is
A playground of area 2430 sq.mt is built on $$\frac{1}{3}$$ of the area of a rectangular plot. The length of the plot is ten times the breadth of the plot. Then the perimeter of that rectangular plot (in mts) is
The breadth of a rectangle is 60% of the diagonal of a square of area 625 sq.cm. If the perimeter of the rectangle is $$84 \sqrt{2}$$ cm, then the area of the rectangle (in sq.cm) is
An open box is made of wood with 3 cm thickness. Its extemal dimensions are 1.46m, 1.16m and 8.3 decimetres. The cost (in Rs.) of painting the inner surface of the box at Rs. 5 per 100 sq.cm is
A well with -inside diameter 14 m is dug 10m deep. Earth taken out of it is evenly spread all around it to a width of 21m to form an embankment. The height (in meters) of that embankment is
A conical shaped tent of height 14m with a floor area 346.5 sq.m is to be built with a canvas of width 1.1m. The length (in mts) of the canvas required to build that tent is
There are two cones such that the curved surface area of the first is twice that of the second. If the slant height of the second is thrice that of the first, then the ratio of their radii is
Four coins each of diameter 1 cm are placed on a table such that the rim of each coin touches the rim of two other coins. The area of the unoccupied space between those four coins (in sq. cm) is nearly