What is the duplicate ratio of 9:17

81 : 289

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81 : 290

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80 : 289

No worries! We‘ve got your back. Try BYJU‘S free classes today!

91 : 289

No worries! We‘ve got your back. Try BYJU‘S free classes today!

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Solution

The correct option is A
81 : 289

We know that for a ratio a : b, triplicate ratio is defined as the ratio of squares of the terms i.e $a^{2} : b^{2}$

$∴$ The duplicate ratio of 9:17 is $9^{2} : 17^{2}$ = 81 : 289

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