Saved Bookmarks
| 1. |
Two numbers are in the ratio 7:5 and their difference is 12. find the two numbers. |
|
Answer» -Ratio of two numbers = 7 : 5Difference of the two numbers = 12To Find :-The first number.The second number.Analysis :-Consider the COMMON ratio as a VARIABLE.Make an equation accordingly.Then find the value of the variable and SUBSTITUTE it in the sides.Solution :-LET the common ratio be 'x'. Then the numbers would be 7x and 5x.Given that,Difference of the two numbers = 12Making an equation,7x - 5x = 122x = 12x = 12/2x = 6Finding the numbers,7x = 7 × 6 = 425x = 5 × 6 = 30Therefore, the two numbers are 42 and 30. |
|