# The sum of 2 nos is 4000 . If 15 % of one is equal to 25% of the other no. Find the nos ?

##### 2 Answers

#### Answer:

The numbers are

#### Explanation:

Let x and y be the two numbers.

First equation:

Second equation (remember

Isolate y in the first equation:

Substitute this into the second equation:

Distribute and solve for x:

Substitute this into first equation written in terms of y:

#### Answer:

#### Explanation:

Let one value be represented as

Let the other letter be represented as

Then we have

Also we have:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

substitute for

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Consider the LHS

Consider the RHS