Question

The 4th term of an arithmetic progression is 15, 15th term is -29, find the 10th term?

• A. -5
• B. -13
• C. -17
• D. -9

Answer 1

Answer:

D. -9

a4= a+3d=15 a15= a+14d= -29 11d=-44 hence d= -4 a=27 a10= a+(n-1)d= a+9d = 27+9(-4) = 27-36= -9