What will come in the place of โ?โ in the following equation, if โรทโ and โโโ are interchanged and โรโ and โ+โ are interchanged?
4 + 9 ร 48 โ 6 รท 7 = ?
30 is related to 41 following certain logic. Following the same logic, 14 is related to 21. To which of the following numbers is 54 related, following the same logic?