Thursday, August 7, 2014

JMO STD V and STD VI --- Data interpretation

In a class of 33, 20 students play cricket, 25 football and 18 volleyball; 15 play both cricket and football, 12 play football and volleyball and 10 cricket and volleyball.
If each student plays at least 1 game, how many play only cricket?




Answer:

Let x be the number of students who play all the games


Those who only play cricket is x - 5
Add all the elements inside the venn diagram and total it to 33

we get x = 7

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