Question

The sum of two numbers, one of which is two third of the other is 45, find the number​

Answer 1

Answer:

Let x = 2/3 * y (one number is two thirds of the other

x + y = 45 ( the sum of the two numbers is 45

replace x with 2/3 * y

2/3 *y + y = 45

5/3 * y = 45

5y = 135

y = 27

x = 2/3 * y = 18

18 + 27 = 45

Answer 2

Answer:

Let x = 2/3 * y (one number is two thirds of the other

x + y = 45 ( the sum of the two numbers is 45

replace x with 2/3 * y

2/3 *y + y = 45

5/3 * y = 45

5y = 135

y = 27

x = 2/3 * y = 18

18 + 27 = 45