Content Ad 002

The average age of 10 members of the board of directors of a company is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member?

Click here to learn more

4 years back: Let the sum of nine directors (total) =x The age of the old director who was replaced=z The board’s average 4 yrs before=(x+z)/10.

Present time: After 4 yrs let z be replaced by y. So now the average age of the board is=(x+4*9+y)/10 Now (x+z)/10=(x+36+y)/10 So after solving it found z=y+36. z-y=36

Now this gives us the difference between the Old person’s age four years back and the younger member’s current age. Their difference will be (z+4)-y= 40

So the old person is 40yrs older than young one.

Content Ads 02 Sample 01
Website Popup

Join our Free TELEGRAM GROUP for exclusive content and updates

Rsz 1rsz Close Img

Join Our Newsletter

Get the latest updates from our side, including offers and free live updates, on email.

Rsz Undraw Envelope N8lc Smal
Rsz 1rsz Close Img