Answer:
mn = 3.5 unit
Step-by-step explanation:
Given:
mn = x+1 unit
nr = 3x unit
mr = 11 unit
Find:
mn
Computation:
mr = mn + nr
11 = x+1 + 3x
11-1 = x + 3x
10 = 4x
x = 10/4
x = 2.5 unit
So,
mn = 2.5+1 unit
