Can I please get Grade 7/ Standard 5 working for this??!! 
 In a class 40% of the students like soccer, 3/10
 like cricket, 0.2 like basketball and 4 like table
 tennis. Calculate:
 (a) how many children are in the class.
 (b)how many more children like soccer than
 basketball.
 (c)the number of children who like cricket.