Mathematics · Ratios, Proportions & Percentages · page 3 of 6
Direct and Inverse MCQs with Answers
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Practice these MCQs in the appDirect and Inverse Variations MCQs (21–30)
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Past paper MCQs in this chapter · See all past papers
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- 21.
If $y \propto x$ and when $x = 5$, $y = 210$, then find $y$ when $x = 2$.
- 22.
If the fare for $34$ km is Rs. $1190$, what will be the fare for $48$ km?
- 23.
Past Paper MCQ
Find the value of $x$ when $y = 5$, if $x$ varies directly as $4y - 1$ and $x = 14$ when $y = 2$.
- 24.
The expenses of 35 guests at a party are $52{,}500$. The expenses of 85 guests would be ?
- 25.
If $R = xS^4$, and when $S = 5$, $R = 6$, then find the value of $R$ when $S = 8$.
- 26.
The cost of 3 books of class III is Rs 126. What will be the cost of 8 books?
- 27.
120 copies of a book cost Rs. 6000. What will be the cost of 400 copies?
- 28.
If $x$ varies inversely to $y$ and $x = 3$ when $y = 12$, find the value of $y$ when $x = 6$.
- 29.
If the price of 15 books is Rs 239, what will be the price of 9 books?
- 30.
Which of the following represents a direct proportion in $y$?