The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs, except one. Find that odd number-pair.

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding /Subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed)

(39, 65), (63, 105)

Which of the following interchanges of signs would make the given equation correct?

110 ÷ 20 + 5 × 13 - 9 = 153

If '+' means 'division', '-' means 'multiplication', '÷' means 'subtraction' and '×' means 'addition', then what is the value of the following expression?

805 + 23 ÷ 4 - 6 × 2