A car has two wipers. Each wiper has a blade of length 24 cm, sweeping through an angle of . Overlapping of wipers can not happen. Find the total area cleaned at each sweep of the blades.

In a circle of radius 10.5 cm, the minor arc is one-fifth of the major arc. Find the area if the sector corresponding to the major arc.

Direction: Answer the questions based on the following information.

In a class of 300 students, it was found that 170 play football, 100 play cricket and 130 play Hockey, further, 30 of them play both cricket and Hockey, 40 play both football and cricket and 60 play both football and Hockey.

The maximum number of students who play all the three sports?

In a group of 900 people, there are 800 people who can speak Punjabi and 500 who can speak English. How many can speak Punjabi only?