SOLUTION: If 3 times the reciprocal of the larger of two consecutive integers is subtracted from 2 times the reciprocal of the smaller, then the result is 1/2. Find the two integers.
Algebra ->
Problems-with-consecutive-odd-even-integers
-> SOLUTION: If 3 times the reciprocal of the larger of two consecutive integers is subtracted from 2 times the reciprocal of the smaller, then the result is 1/2. Find the two integers.
Log On
Question 1171126: If 3 times the reciprocal of the larger of two consecutive integers is subtracted from 2 times the reciprocal of the smaller, then the result is 1/2. Find the two integers. Answer by ikleyn(52863) (Show Source):
The numbers are n and n+1.
The equation is
- = .
Multiply both sides by 2n*(n+1). You will get
4(n+1) - 6n = n*(n+1)
4n + 4 - 6n = n^2 + n
n^2 + 3n - 4 = 0
(n-1)*(n+4) = 0.
The roots are n= 1 and n= -4.
Both roots work.
ANSWER. There are two solutions.
First solution represents numbers 1 and 2.
Second solution represents numbers -4 and -3.