Shubham painted 2/3 of the wall space in his room. His sister Madhavi helped and painted 1/3 of the wall space. How much did they paint together?

A man X has 7 friends, 4 of them are ladies and 3 are men. His wife Y also has 7 friends, 3 of them are ladies and 4 are men. Assume X and Y have no common friends. Then the total number of ways in which X and Y together can throw a party inviting 3 ladies and 3 men, so that 3 friends of each of X and Y are in the party, is : 469 (2) 484 (3) 485 (4) 468

A oil drum is in the shape of a cylinder having the following dimensions : diameter is 2 m and heights is 7 m . The painter charges Rs. 3 per m^2 to paint the drum. Find the total charges to be paid to the painter for 10 drums ?

The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 122 m, 22 m and 120 m. The advertisements yield an earning of Rs 5000 per m^2 per year . A company hired one of its walls for 3 months. How much rent did it pay ?

In a parallel plate capacitor with air between the plates, each has an area 8xx10^(-3)m^(2) and distance between the plates is 2 mm. Calculate the capacitance of the capacitor. If this capacitor is connected to a 50 V supply, what is the charge on each plate of the capacitor? (Absolute permittivity of free space =8.85xx10^(-12)Fm^(-1))

Nazima is fly fishing in a stream. The tip of her fishing rod is 1.8 m above the surface of water and the fly at the end of the string rests on the water 3.6 m away and 2.4 m from a point directly under the tip of the rod. Assuming that her rod to the fly) is taut, how much string does she have out(see fig)? If she pulls in the string at the rate of 5 cm per second, what will be the heriozontal distance of the fly from her after 12 seconds.

Daniel is painting the walls and ceiling of a cuboidal hall with length,breadth and height of 15m,10m and 7m respectively.From each can of paint 100 m^2 of area is painted.How many cans of paint will she need to paint the room?