Question

35 is a sum of a.p whose middle term is 7 find the number of term are

Answer 1

Answer:first make the denominator equal

Step-by-step explanation:

20,19,1/4, 18,1/2

80/4, 76/4, 1/4, 72/4, 2/4.......

here,a1=80/4 and a2=76/4

D= a2- a1

76/4-80/4

-4/4

therefore, D=-1