Solution:The pattern followed here is :(2nd number Γ 4) + (2nd number - 25) = 1st number
(125, 30) β {(30 Γ 4) + (30 - 25)} β 120 + 5 = 125
(615, 128) β {(128 Γ 4) + (128 - 25)} βΒ 512 + 103 = 615
Similarly,
(225, 50) β {(50 Γ 4) + (50 - 25)} βΒ 200 + 25 = 225
Hence, (225, 50) is the correct answer.