Group - C [15x4 = 60]
21. If A = {1,3,5,7} and B = {3 ,4 ,5,6} then examine the relation
overlapping or disjoint with diagram.
22. In a class of 60 students , 28 are girls and the rest are boys. Find the
ratio of : a. Number of boys to the number of girls.
b. Number of girls to the number of students.
23. The ratio of the speed of a train and a car is 5:3. If the car travels
60Km in an hour. Find the distance covered by the train in the 1
hour.
24. From the figure find the unknown angles.
T
5x
6x
ss
B
25. From the figure find the value of x'.
700
1380
14001
92°
yo​