Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10th
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3y-3y÷7y-73y2 is - Mathematics

MCQ

`(3y - 3)/y ÷ (7y - 7)/(3y^2)` is

Options

  • `(9y)/7`

  • `(9y^3)/((21y - 21))`

  • `(21y^2 - 42y + 21)/(3y^3)`

  • `(7(y^2 - 2y + 1))/(y^2)`

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Solution

`(9y)/7`

Explanation;

Hint: `(3y - 3)/y ÷ (7y - 7)/(3y^2)`

= `(3(y - 1))/y ÷ (7(y - 1))/(3y^2)`

= `(3(y - 1))/y xx (3y^2)/(7(y - 1))`

= `(9y)/7`

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APPEARS IN

Samacheer Kalvi Mathematics Class 10 SSLC Tamil Nadu State Board
Chapter 3 Algebra
Exercise 3.20 | Q 4 | Page 154
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