the 14th term of an A. P in 96 while the 25th term in173. fine the
a 18th term
b sum of 13th and 50th term
for the value of x for in the expression X +15x+50
x -5
11d = 173-96 = 77
so d = 7
a+13d = 96
so a = 5
Now you can answer the questions