Question

which term of the AP: 120, 116, 112, ..... its first negative number

Answer 1

Answer:32nd term will be an negative number

Step-by-step explanation:

a=121      d=-4

algebric expression = -4n-124

       -4n-124=0

              4n =124

                 n=124/4=31

therefore ,32nd term will be the first negative number.