Problem Solving (PS) | Re: Given positive integers w, x, y, and z. If the remainder when w is div

Solution

Given:
•w, x, y, and z are positive integers
•when w is divided by x, remainder is 9
•when z is divided by y, remainder is7

To find:
•The least value of x +y

Approach and Working:
When a number is divided by a certain divisor n, the value of n is always greater than the remainder.
Here if w is divided by x, the remainder is 9. Therefore, the value of x is always greater than 9.
•As x is a positive integer, the minimum value of x = 10
Similarly, when z is divided by
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