For the following questions answer them individually
Three persons A, B and C working alone, can complete a piece of work in 10, 15, and 40 days respectively. A and C started  working together, after 5 days, C quits and is replaced by B, The number of days required to complete the work is
The smallest side of a right angled triangle is 7 cm less than the side of square of perimeter 52 cm. The second largest side of that triangle is equal to the length of the rectangle of area 72 sq cm., whose breadth is 8 cm. The length of the largest side of the right angled triangle is (in cms)
The area of the four walls of a room is 128 sq.m. If the length, the breadth are equal and the height of the wall is equal to 4 meters , the area of the floor of the room (in sq.m) is
If curved surface area of the cylinder with meters height is 220 sq.mts. Its volume (in cu mts) is
The ratio of diameter to height of a right circular cylinder is 6 : 5. If the diameter gets reduced by 25%, then its total surface area is reduced by 338.25 sq.meters. Then the circumference of the base of original cylinder is
A circular tent with a cone on top is to be constructed as shown in the given diagram. The canvas (in sq.m) required to erect the tent is
$$193m^{3}$$ of water is poured in a tank having a square base. The water reaches a level that is three times the length of the base. Then area of the base is (in $$m^{2}$$)
If $$|x| \leq 2$$, which one of the following has the largest (greatest) possible absolute value?