It is a question from ML aggarwal, class 10th, chapter 7, ratio and proportion, Avichal publication
This is a basic question of this chapter
In this ques we have to find the reciprocal ratio of given ratio that is given in the ratio of a:b
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Solution:
(i) 4: 7
We know that
Reciprocal ratio of 4: 7 = 7: 4
(ii) 32: 42
We know that
Reciprocal ratio of 32: 42 = 42: 32 = 16: 9
(iii) 1/9: 2
We know that
Reciprocal ratio of 1/9: 2 = 2: 1/9 = 18: 1