If 3√5 + √125 = 17.88, then what will be the value of √80 + 6√5?

⟹ 3√5 + √25 x 5 = 17.88

⟹ 3√5 + 5√5 = 17.88

⟹ 8√5 = 17.88

⟹ √5 = 2.235

∴ √80 + 6√5 = √16 x 5 + 6√5

   = 4√5 + 6√5

   = 10√5 = (10 x 2.235) = 22.35