Two groups of numbers are given below. In each set of numbers, the first number 'is obtained by performing certain mathematical operations on the second number. Similarly, certain mathematical operations on the second number result in the third number and so on. Which of the following options follows the group of verbs given in the question? (Note: Mathematical operations should not be performed on the component digits of whole numbers. For example, 13 – arithmetic operations such as addition/subtraction/multiplication can be performed on the number 13. The component digits 1 and 3 of 13 are not allowed to be separated and arithmetic operations on 1 and 3 are not allowed.) 13-26-31-34; 24-48-53-56

Question

Question

This question was previously asked in

Punjab Police Constable Official Paper-I & II (Held On: 08 Aug, 2024 Shift 1)

Answer 1

The logic followed here is:

13-26-31-34

13 × 2 = 26

26 + 5 = 31

31 + 3 = 34

And,

24-48-53-56

24 × 2 = 48

48 + 5 = 53

53 + 3 = 56

So, checking each option one by one:

Option 1) 31-62-67-70

31 × 2 = 62

62 + 5 = 67

67 + 3 = 70

Option 2) 31-60-67-70

31 × 2 = 62 ≠ 60

60 + 5 = 65 ≠ 67

67 + 3 = 70

Option 3) 31-62-69-70

31 × 2 = 62

62 + 5 = 67 ≠ 69

69 + 3 = 72 ≠ 70

Option 4) 31-62-67-72

31 × 2 = 62

62 + 5 = 67

67 + 3 = 70 ≠ 72

Thus, out of all the options '31-62-67-70' follows the same logic as given.

Hence, "Option 1" is the correct answer.