Question
If p , q , r and s are in Arithmetic Sequences, then r - q is
- S – p
- s – q
- s – r
- None of the above
Hint:
In this question r-q is the common diffrence of AP which is always equal among all the terms so r-q is equals to s-r.
The correct answer is: s – r
STEP BY STEP SOLUTION
Since p , q , r , s are in A.P.
∴ (q – p) = (r – q) = (s – r) = d (common difference)
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