Others
Maths Puzzle
given the arithmetic sequence 71,65,59,55 ... if a(n) is -43 what is the value of n
Read Solution (Total 2)
-
- n=20
nth term of AP = a+(n-1)*d
-43 = 71+(n-1)*(-6)
so n=20 - 12 years agoHelpfull: Yes(3) No(1)
- actually question is wrong it should be 71,65,59,53....and answer is 20
- 12 years agoHelpfull: Yes(3) No(3)
Others Other Question