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Question : Directions: Four number-pairs have been given, out of which three are alike in some manner and one is different. Select a different one.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their 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.)
17 : 82
31 : 158
19 : 92
47 : 232

Option 1: 31 : 158

Option 2: 47 : 232

Option 3: 17 : 82

Option 4: 19 : 92


Team Careers360 23rd Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: 31 : 158


Solution : Given:
17 : 82
31 : 158
19 : 92
47 : 232

Here, multiply the first number by 5 and subtract 3 from the resultant to get the second number –
⇒ 17 : 82; 17 × 5 – 3 = 82
⇒ 31 : 158; 31 × 5 – 3 = 152 ≠ 158
⇒ 19 : 92; 19 × 5 – 3 = 92
⇒ 47 : 232; 47 × 5 – 3 = 232

So, the first option is different from the other three options as the result is 152 instead of 158. Hence, the first option is correct.

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