Question

The product of two numbers is 72. The larger number is 4 more than 3 times the smaller number what is the solution

Answer 1

Answer:

Hi there,

Let’s firstly represents mathematically. We are going to assume x, y as the two numbers id’s.

Then,

The product = xy = 72.

And y = 3x + 4. =>

Y = 72/x = 3x + 4 =>

72 = 3 x^2 + 4x => which led to second degree equation of two solutions as follows:

3x^2 + 4x - 72 = 0

=>. x^2 + 4/3 x - 24 = 0

=> x = either 4.28. Or x = -5.61

Then the two solutions are :

16.84, 4.28 with error % of +0.12%

Or

-12.83, -5.61 with error % of -0.025%

You can solve it exactly with zero error using scientific calculator.

Enjoy