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 are not allowed.)

(24,12,72)

(15,16,60)

Correct option is D

Given:

(24,12,72)

(15,16,60)

Logic:

The logic followed here is (First number) $$\times$$ (Second number $$\div$$4) = Third number

(24,12,72)

24 $$\times$$ 12 $$\div$$ 4 = 72

24 $$\times$$ 3 = 72 

72 = 72 (Follow)

(15,16,60)

15$$\times$$ 16 $$\div$$4 =60

15  4 = 60$$\times$$

60 = 60 (Follow)

So,

Option (a) (18, 12, 56)

18$$\times$$12$$\div$$ 4 = 56

18 $$\times$$3=56

54 $$\not=$$​56 (Not Follow)

​Option (b) (30, 40, 156)

30 $$\times$$ 40$$\div$$4 = 156

30$$\times$$10= 156

300 $$\not=$$ 156 (Not Follow)

Option (c) (17, 20, 65)

17$$\times$$20$$\div$$4=65

17× 5= 65

85 $$\not=$$​ 65(Not Follow)

Option (d) (20, 24, 120)

20$$\times$$24÷ 4 = 120

20 $$\times$$6 =120

120 = 120 (Follow)

Thus, correct option is (d)