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Sahay Sir > Question Answers > NCERT Class 8 > Maths > Chapter 13 - Direct and Inverse Proportions > Example 8 : If the cost of 10 pencils is Rs 90, then the cost of 19 pencils is Rs 171.

Example 8 : If the cost of 10 pencils is Rs 90, then the cost of 19 pencils is Rs 171.