Find the value of n.

Question

a wholesaler sold n bars for (n+1) cents each. On the following day she doubled the price but sold 2 bars less. The amount of the money take on each day was the same. Find the value of n.

Answer 1

First day intake:

n(n + 1)

Following day:

(n - 2)(2)(n + 1)

 

Two amounts are equal

 

n(n + 1) = (n -2)(2)(n +1)

 

Can you solve for n and answer?