Events
Sumof 2 dice 2 , 3,4,5,6,7,8,9,10,11,12
Probability 1÷36 5÷36 1÷36
There are 11 outcomes and each probability has probability 1÷11 . Do you agree with argument . Justify your answer.
Places A and B are 80 km apart from each other on a highway. A car starts from A and
another from B at the same time. If they move in same direction they meet in 8 hours and if
they move towards each other they meet in 1 hour 20 minutes. Find the speed of cars.
14. Find the area of the triangle formed by joining the mid-points of the sides of the triangle whose vertices are (0, –1), (2, 1) and (0, 3). Find the ratio of this area to the area of the given triangle.