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The inverse ratio of 11:15 is
  • a)
    15:11
  • b)
    √11:√15
  • c)
    121:225
  • d)
    none of these
Correct answer is 'C'. Can you explain this answer?
Most Upvoted Answer
The inverse ratio of 11:15 isa)15:11b)√11:√15c)121:225d)no...
Required sub - duplicate ratio of 81 : 64 = √81 : √64 = 9 : 8
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Community Answer
The inverse ratio of 11:15 isa)15:11b)√11:√15c)121:225d)no...
Given: Ratio of 81 : 64

To find: Sub-duplicate ratio

Sub-duplicate ratio is the ratio of square root of the antecedent and consequent.

∴ Square root of antecedent = √81 = 9

Square root of consequent = √64 = 8

∴ Sub-duplicate ratio = 9 : 8

Hence, option (c) 9 : 8 is the correct answer.
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The inverse ratio of 11:15 isa)15:11b)√11:√15c)121:225d)none of theseCorrect answer is 'C'. Can you explain this answer?
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