Question

Select the correct answer.
The sum of two consecutive numbers is 157. This equation, where n is the first number, represents the situation:

2n + 1 = 157.

What is the first number?

A.
77
B.
78
C.
79
D.
80

Answer 1

Answer:

B. 78

Step-by-step explanation:

2n + 1 = 157

2n = 156

n = 78