Question

the sum of two numbers is 80 and the difference is multiplied by 4 , the result is 5. what is the number ​

Answer 1

Answer:

Given,

sum of two numbers is 80

let the numbers be x and y

x+y=80(equation 1)

the difference multiplied by 4 , the result is 5

i.e, (x-y)×4=5

x-y=5/4

x=5/4+y (put this value in equation 1 )

5/4+y+y=80

5/4+2y=80

2y=80 - 5/4

2y=315/4

y=315/8

y=39.375

hope it helps you