Question

The ages of two students A andB are 19years and 15years respectively find how many years it will take so that product of there ages becomes equal to 480

Answer 1

Answer:

Here is your answer

Step-by-step explanation:

Answer 2

Answer:

5 years

Step-by-step explanation:

Let the number of years to come be x

We get a quadratic equation for this problem, so (19 + x) (15 + x) = 480

Now, 285 + 19x + 15x + x² = 480

Then, x² + 34x + 285 = 480.

So p(x) = x² + 34x - 195 = 0

By factorisation, x² + 39x - 5x - 195 = 0

By taking x and 5 common, x (x + 39) - 5 (x + 39)

So, x - 5 = 0, x = 5     [Ignoring +ve value]

So more five years and their product would be 480..