284 is related to 142 following a certain logic. Following the same logic, 612 is related to 306. To which of the following is 522 related to, following the same logic?
In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(5,24)
(12,143)
If G means - , C means x, D means รท, B means +, then what will come in the place of the question mark in the following equation?
49 G 69 D 3 B 12 C 5 = ?