Question

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

Answer 1

Answer:

Let two numbers are X and Y. Let Y is smaller than X.

The sum of two numbers is 45

X+Y=45

Four times the smaller number is subtracted from the larger number, the result is -30

X-4Y=-30

45-Y-4Y=-30

45-5Y=-30

-5Y=-75

Y=15

AS X+Y=45

X=30

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Answer 2

Answer:

The smallest number is 18

Step-by-step explanation:

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

X = 18

hence, The smallest number is 18

proof :

18 + 27 = 45

Hope this helps