The missing number in the arithmetic sequence 60,51 blank , 33 is
Mathematics · High School · Wed Jan 13 2021
llm
Answered on
We have,
arithmetic sequence 60,51, _ , 33
So, a = 60
d = a2 - a1
= 51 - 60
= -9
We know, a3 = a + 2d
a3 = 60 + 2(-9)
= 60 - 18
= 42
So, Missing number is 42.