Given :
- Ratio between the number of nuts to the number of bolts = 7 : 9
- Number of bolts = 36
To Find :
S O L U T I O N :-
Let the number of nuts and bolts be 7x and 9x respectively.

Solving the formed equation :

- By dividing both sides by 9 .

- By dividing 36 and 9 by 9.

The number of number of nuts are 7x = 7*4 = 28.