Q. 625.0( 2 Votes )

Which of the following vary directly and which vary inversely with each other and which are neither of the two?

(i) The quantity of rice and its cost.

(ii) The height of a tree and the number of years.

(iii) Increase in cost and number of shirts that can be purchased if the budget remains the same.

(iv) Area of land and its cost.

(v) Sales Tax and the amount of the bill.

Answer :

i. The quantity of rice and its cost are directly proportional to each other.


e.g., If 1 kg of rice price = ₹ 40. Then, 2kg of rice price = ₹ 2 × 40 = ₹ 80.


ii. The height of a tree and the number of years is neither directly nor inversely proportional to each other.


iii. Increase in cost and number of shirts that can be purchased if the budget remains the same is inversely proportional to each other.


e.g. If 2 shirt’s prices = ₹ 800. After increase in price each price.


1 shirt price becomes of ₹ 800 where budget = ₹ 800.


iv. Area of land and its cost are directly proportional to each other.


e.g. Let 200m2 land cost = ₹ 5000


Then, 400m2 land cost = ₹ 10,000


v. Sales tax and the amount of the bill are directly proportional to each other.


e.g. Let bill amount = ₹ 1000


Sales tax = 10


Then, sales tax =


But if, bill amount = 2000


Sales tax = 10


Then, sales tax =


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 :