Question

which of the following quantities are in direct variation?
1) number of the objects and their prices.
2) number of mathematics books of class 7th and their prices.
3) area of a field and its price.
4) quantity of milk( in lt.) and its price.
5) number of labours and the total number of days in which the work is completed.

Answer 1

1) Direct proportion.
2) Direct proportion
3) Direct proportion
4) Direct proportion
5) inverse proportion

So ur answer is 1,2,3 and 4.

thnk u
hope it helped u

Answer 2

expect option 5
every option is of direct variation.
that means option 1 2 3 4 are of direct variation.