The product of the two numbers is 80. If one of the numbers is 4 times the other. Find both numbers.
Given:
The product of the two numbers is 80.
One of the numbers is 4 times the other.
To do:
We have to find both numbers.
Solution:
Let one number be $x$.
This implies,
The other number $=4\times x$
$=4x$
The product of the two numbers is 80.
This implies,
$x \times 4x=80$
$4x^2=80$
$x^2=\frac{80}{4}$
$x^2=20$
$x=\sqrt{20}$
$x=\sqrt{4\times5}$
$x=2\sqrt5$
$4x=4(2\sqrt5)=8\sqrt5$
Therefore, the required numbers are $2\sqrt5$ and $8\sqrt5$.
Related Articles
- The product of two numbers is 59.328 . If one of the numbers is 12.36 , Find the other number.
- The product of two rational numbers is 15. If one of the numbers is $-10$, find the other.
- The product of the two numbers is 76.35. If one of the numbers is 5, find the other number.
- The product of two numbers is 1296. If one number is 16 times the others find the numbers.
- The product of two rational numbers is $\frac{-8}{9}$ if one of the numbers is $\frac{-4}{15}$, find other.
- The product of two numbers is 2197. If one of the numbers is 13 times then find another number.
- The sum of two numbers is 16.25 if one of the numbers is 9.28, find the other
- The product of two decimal numbers is 131.58. If one of them is 2.15, find the other.
- The sum of two numbers is 95. If one of the numbers exceeds other number by15 then find the numbers?
- Sum of two numbers is 95. If one exceeds the other by 15, find the numbers.
- The sum of two rational numbers is $-8$. If one of the numbers is $−\frac{15}{7}$ find the other.
- The sum of two numbers is $\frac{5}{9}$. If one of the numbers is $\frac{1}{3}$, find the other.
- The sum of two numbers is $\frac{-1}{3}$. If one of the numbers is $\frac{-12}{3}$, find the other.
- The product of two rational numbers is $\frac{-8}{7}$. If one of the numbers is $\frac{2}{9}$, what is the other rational number?
- The sum of two numbers is $\frac{−4}{3}$. If one of the number is $-5$, find the other number.
Kickstart Your Career
Get certified by completing the course
Get Started