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)
(24, 42)
(36, 63)

Given: (24, 42)
            (36, 63)

Logic: Second Number = $$\frac{\text{First Number}}{4}$$$$\times7$$

​$$\frac {24}{4}$$ $$\times 7$$ = 42 ; $$\frac{36}{4}$$​​​$$\times7$$ =63

Lets check each options

option (a).

​$$\frac{52}{4}$$ $$\times$$ 7 = 91

Thus, the correct option is (a)