Question

If the average of a number it's 75 and 25 is 240

Answer 1

If the average of a number is 75% and 25% is 240 then the number is ?

Let the unknown number be x

75% is $\frac{75}{100} = 0.75$

25% is $\frac{25}{100} = 0.25$

Average of x, 0.75x, 0.25x is equal to 240

$\frac{x+0.75x+0.25x}{3} =240$

Multiply by 3 on both sides

x +0.75x +0.25x = 720

2x = 720

Divide by 2 on both sides

x = 360

Therefore, the number is 360

Answer 2

x+0.75x+0.25x=720

2x=720

x=720 upon 2

x=360