Direct And Inve...

Rajan has just enough money to buy 24 pairs of jeans worth Rs. 700 each. How many pairs of jeans can he buy with the same amount if he gets a discount of Rs. 100 on each pair?

1) If x and y are in direct proportion, then x/y = constant.
2) As the diameter of a circle increases, the circumference also increases. This is a case of direct proportion.
3) If distance is constant, then work is inversely proportional to force.
4) In an inverse proportion, if one number increases, then the other will decrease.

Fill in the blanks:

1) When two quantities are in direct proportion, as one increases, the other increases by the same _____.
2) For some constant k, if xy = k, then the values of x and y vary ____.
3) When two given quantities vary directly, an increase in one will reflect as ____ in the other quantity.