2. Questions Bank
  3. 7th Class
  4. Mathematics
  5. Mensuration

7th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    What change in percent is made in the area of a rectangle by decreasing its length and increasing its breadth by 5%?

    A) 2.5% increase             

    B) 0.25% increase

    C) 0.25% decrease  

    D) 2.5% decrease

    Correct Answer: C

    Solution :

        \[\left( \frac{-5}{100} \right)\times \left( \frac{5}{100} \right)=\frac{-\,25}{10,000}\] \[\frac{25}{10,000}\times 100%=0.25%\,decrease.\]           


You need to login to perform this action.
You will be redirected in 3 sec spinner