Question
The value of M in (p/q)2M + 2 = (q/p)9 - M is:
This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is
-11
The correct answer is Option 1 i.e. -11.
(p/q)2M + 2 = (q/p)9 - M
⇒ (p/q)2M + 2 = (p/q)-(9 - M)
On comparing powers
⇒ 2M + 2 = -(9 - M)
⇒ 2M + 2 = -9 + M
⇒ 2M - M = - 9 - 2
⇒ M = -11
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