First Benchers

The following are some major events in the early history of life. P. First heterotrophic prokaryotes Q. First genes R. First eukaryotes S. First autotrophic prokaryotes T. First animals Which option below places these events in the correct order?

First Law

First aid

First vertebrates are

First vertebrae is ____

First Order

If the sum of the first ten terms of an A.P is four xx the sum of its first five terms,the ratio of the first term to the common difference is:

If the first term of an AP is 2 and the sum of the first five terms is equal to one-fourth of the sum of the next five terms, then what is the sum of the first ten terms?

In an A.P. the sum of the first ten terms is 210 and thee difference between the first and the last term si 36 . Fiind the first term in the A.P.