Rational Number...

p: Every fraction is a rational number. 
q: Every rational number is a fraction. 

Which of the following is correct?

The value of x such that −3/8 and x/−24 are equivalent rational numbers is____. 

For any two rational numbers x and y which of the following is/are correct, if x is positive and y is negative?

(1) x<y
(2) x=y
(3) x>y

Which of the following pairs represent the same rational number? 

3/20 of a delegation are from India, 1/4 are from Britain, 3/10 are from Germany and the rest are Americans. If there are 1200 members in the delegation, calculate how many Americans are there? 

Which of the following statements is correct?

A farmer grows vegetables in his field. In 2/3 of the field, he grows potatoes, in 1/4 he grows onions and in the rest of the field he grows tomatoes. In what part of the field does he grow tomatoes?