1. The sum of two numbers is 25 and their product is 144. Find the numbers.
Answers
Answered by
1
Answer:
sum of 2 numbers is 25 product is 144.
let the number be x.
x+25=144
x=144-25
x=119
check:129+25=144
Answered by
7
Given :-
The sum of two numbers = 25
The product of two numbers = 144
To Find :-
Find the numbers.
Solution :-
Let the two numbers be 'x' and 'y' respectively.
Given that,
The sum of two numbers is 25 and their product is 144.
Condition by sum,
x + y = 25
x = 25 - y ....(1)
Condition by product,
xy = 144
Putting the value of x,
(25 - y) y = 144
25y - y² = 144
y² - 25y + 144 = 0
y² - 16y - 9y + 144 = 0
y² - 16y - 9y + 144 =0
y (y - 16) - 9 (y - 16) = 0
(y - 9) (y - 16) = 0
y = 9 or y = 16
Substitute the value of y,
x = 25 - y
x = 25 - 16
x = 9
Next,
x = 25 - 9
x = 16
Therefore, the numbers are 9 and 16.
Similar questions