gneet    TOPIC : Ratio,proportion, indices, log C.A. foundation Number of questions are 110

Questions from exercise 8A Q.1 - 25;   exercise 8B Q.26 - 55;   exercise 8C Q.56 - 85;   exercise 8D Q.86 - 110;  
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QUESTION    2
Q.1)The inverse ratio of 11 : 15 is

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The inverse of a : b is b : a.
So inerse of 11 : 15 is 15 : 11.
Answer : (a)


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