Chain Rule - Quantitative Aptitude (MCQ) questions for Q. 702

Q.   If a cloth merchant sells ‘a’ metres of cloth for Rs.x, then what is the selling price of ‘b’ metres of cloth?

- Published on 06 Jul 15

a. Rs.(b*x)
b. Rs.{(b*x)/a}
c. Rs.{(a*b)/x}
d. None of these

ANSWER: Rs.{(b*x)/a}
 
Cost of ‘a’ metres of cloth = Rs.x. Therefore, each metre of cloth costs Rs. (x/a).
The cost of ‘b’ metres of cloth = Rs. b*(x/a) = Rs. {(b*x)/a}

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