Question

For 2 consecutive integers, the result of adding the

smaller integer and triple the larger integer is 79. What
are the 2 integers?
A. 18, 19
B. 19, 20
C. 20, 21
D. 26, 27
E. 39, 40

Answer 1

`n+3(n+1)=79\\\\n+3n+3=79\\\\4n=79-3\\\\4n=76\ \ \ \ /:4\\\\n=19\\\\n+1=20\\\\Answer:B.\ 19\ and\ 20.`