The difference between two number is 7 and their sum is 35 what will be their product?
Answers
Hello dear!!!
Here's your answer...
Let,
One number be x
Other number be y
Given,
Sum of those numbers is 35
x+y = 35
This is equation 1
Difference of those numbers is 7
x - y = 7
This is equation 2
Solve equation 1 and 2
x+y = 35
x-y = 7
_______
2y = 28
y = 14
Substitute y =14 in equation 1
x+y=35
x+14=35
x=35-14
x=21
Therefore,the two numbers are 21 and 14
The product is
21×14
294
______________________
Hope this helps you...
ANSWER:-
Given:
The difference between two number is 7.
& Their sum is 35.
To find:
Their product.
Solution:
Let the first number be R &
Let the second number be M.
According to the question:
=) R - M= 7............(1)
=) R + M= 35..........(2)
Elimination Method:
From equation (1), we get;
=) R - M= 7
=) R= 7 +M............(3)
Putting the value of R in equation (2), we get;
=) R+ M= 35
=) 7 + M + M= 35
=) 7 + 2M = 35
=) 2M= 35 - 7
=) 2M= 28
=) M= 28/2
=) M= 14
Now,
Putting the value of M in equation (3), we get;
=) R= 7 + M
=) R= 7 + 14
=) R= 21
Therefore,
Products:
=) R × M
=) 21 × 14