Below are given two sets of numbers. In each set of numbers, a certain…
2026
Below are given two sets of numbers. In each set of numbers, a certain mathematical operation on first number results in the second number. Similarly, a certain mathematical operation on second number results in the third number and so on. Which of the given options follows the same set of operations as in question?
(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. can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
38 - 266 - 532 - 544
13 - 91 - 182 - 194
- A.
25 - 155 - 465 - 478
- B.
22 - 154 - 770 - 782
- C.
12 - 96 - 288 - 300
- D.
15 - 105 - 210 - 222
Attempted by 17 students.
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Correct answer: D
1. Analyze the first set: 38 - 266 - 532 - 544. The operations sequence is: 38 × 7 = 266, 266 × 2 = 532, 532 + 12 = 544. 2. Verify the logic with the second set: 13 - 91 - 182 - 194. The operations are perfectly identical: 13 × 7 = 91, 91 × 2 = 182, 182 + 12 = 194. 3. Apply this operational sequence (× 7, × 2, + 12) to the given options. Only Option D (15 - 105 - 210 - 222) satisfies this exact logic: 15 × 7 = 105, 105 × 2 = 210, 210 + 12 = 222. Final Answer: Option D