Question : Direction: In the following question, select the one which is different from other three alternatives.
Option 1: 104 : 78
Option 2: 96 : 80
Option 3: 64 : 48
Option 4: 80 : 60
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Correct Answer: 96 : 80
Solution : Let's check the options —
First option: 104 : 78; The highest common factor is 26. Dividing both numbers by 26 gives the ratio 4 : 3
Second option: 96 : 80; The highest common factor is 16. Dividing both numbers by 16 gives the ratio 6 : 5. This option is different from the other options.
Third option: 64 : 48; The highest common factor is 16. Dividing both numbers by 16 gives the ratio 4 : 3
Fourth option: 80 : 60; The highest common factor is 20. Dividing both numbers by 20 gives the ratio 4 : 3
Hence, second option is correct.
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