Question

What will be the 20th term in the given sequence-50,-47,-44....

Answer 1

Answer:

7

Step-by-step explanation:

The given sequence is an AP with first term($a_{1}$) = -50

and common difference(d) = $a_{2}$ - $a_{1}$ = -47 - (-50) = 3

So we know that $a_{n}= a_{1} + (n-1)d$

Therefore, $a_{20} = a_{1} + 19d$

                  $a_{20} = -50 + 19(3) = -50 + 57 = 7$

                  $a_{20} = 7$