Q. 74

Find the values of x and y if a and b are in inverse proportion:

a. 12 x 8

b. 30 5 y

Answer :

In an inverse proportion,


When we multiply the first quantity by any constant k, then another quantity is divided by the same constant k.


Given,



Here, we see that in part (b) when we divide 30by 6, we will get 5.


So, in part(a), we will get the value of x.


i.e. x = 12×6 = 72


Similarly, in part(a) when we divide x i.e.72 by 9, we will get 8.


So, in part(b) we will get the value of y.


i.e. y = 5×9 = 45


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Goprep Genius Quiz on Direct and Inverse proportionsGoprep Genius Quiz on Direct and Inverse proportionsGoprep Genius Quiz on Direct and Inverse proportions32 mins
RD Sharma | Extra Qs. on Inverse ProportionRD Sharma | Extra Qs. on Inverse ProportionRD Sharma | Extra Qs. on Inverse Proportion38 mins
Foundation | Direct & Inverse ProportionsFoundation | Direct & Inverse ProportionsFoundation | Direct & Inverse Proportions57 mins
Quiz | Direct and Inverse ProportionsQuiz | Direct and Inverse ProportionsQuiz | Direct and Inverse Proportions37 mins
Quiz | Direct and Inverse Proportions Part-2Quiz | Direct and Inverse Proportions Part-2Quiz | Direct and Inverse Proportions Part-239 mins
Quiz | Direct and Inverse ProportionsQuiz | Direct and Inverse ProportionsQuiz | Direct and Inverse Proportions47 mins
Quiz | Direct and Inverse ProportionQuiz | Direct and Inverse ProportionQuiz | Direct and Inverse Proportion43 mins
Do You Know Direct and Inverse Proportion??Do You Know Direct and Inverse Proportion??Do You Know Direct and Inverse Proportion??48 mins
Recalling Ratios and ProportionsRecalling Ratios and ProportionsRecalling Ratios and Proportions45 mins
Champ Quiz | Additive and Multiplicative inverseChamp Quiz | Additive and Multiplicative inverseChamp Quiz | Additive and Multiplicative inverse26 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :