If p : q : r = 1 : 3 : 4 and 2p + q + 3r = 51, find the value of r.
यदि p : q : r = 1 : 3 : 4 है और 2p + q + 3r = 51 है, तो r का मान ज्ञात कीजिए।
Answer और ExplanationAnswer and explanation
Answer: (D) 12
माना p = k, q = 3k, r = 4k।
2k + 3k + 3(4k) = 51 ⇒ 17k = 51 ⇒ k = 3
r = 4 × 3 = 12
✓
r का मान 12 है।
Let p = k, q = 3k, r = 4k.
2k + 3k + 3(4k) = 51 ⇒ 17k = 51 ⇒ k = 3
r = 4 × 3 = 12
✓
The value of r is 12.
Source: Selection Post Phase XIV (Graduate) · 19 Sep 2026 · Shift 1। Solution: Prashant Sir, Vijayastra।Source: Selection Post Phase XIV (Graduate) · 19 Sep 2026 · Shift 1. Solution by Prashant Sir, from Vijayastra.