Question : Directions: Select the triad in which the numbers are related in the same way as the numbers of the following triads.
(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.)
4 – 200 – 5
6 – 420 – 7
Option 1: 3 – 660 – 9
Option 2: 7 – 780 – 8
Option 3: 8 – 720 – 9
Option 4: 4 – 400 – 7
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Correct Answer: 8 – 720 – 9
Solution :
Given:
(4 – 200 – 5); (6 – 420 – 7)
In the given triads, multiply the first number, the third number, and 10 to get the second number.
4 – 200 – 5→4 × 5 × 10 = 200
6 – 420 – 7→6 × 7 × 10 = 420
Let's check the given options –
First option:
3 – 660 – 9→3 × 9 × 10 = 270 ≠ 660
Second option:
7 – 780 – 8→7 × 8 × 10 = 560 ≠ 780
Third option:
8 – 720 – 9→8 × 9 × 10 = 720
Fourth option:
4 – 400 – 7→4 × 7 × 10 = 280 ≠ 400
So, only the third option follows the given pattern. Hence, the third option is correct.
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