Question

Find the missing terms in arithmetic sequence
,_,_,42,_,60

Answer 1

is an arithmetic sequence, meaning a number is being added to get the next term

so, let's take a peek at 42

so 42, next term will be 42 + "some number"
next term will be (42 + "some number") + "some number" = 60

so... what do you think is the number that's being added?

lemme put it this way \(\large \begin{array}{ccccl}
\_,\_,42,&\_,&60
\\\hline\\
&\uparrow &\uparrow \\
&42+{\color{red}{ n}}&42+{\color{red}{ n}}+{\color{red}{ n}}
\end{array}\implies 42+{\color{red}{ n}}+{\color{red}{ n}}=60\)

Answer 2

once you know what "n" is, or the value being added, use that to get the other terms

Answer 3

Is it 18?