If the ratio of two numbers is 7 : 5 and their sum is 72, find the numbers.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 42, 30.
If the ratio of two numbers is 7 : 5 and their sum is 72,
Let number = x
7x + 5x = 72
12x = 72
x = 6
The numbers are:
7x = 7 × 6 = 42, 5x = 5 × 6 = 30