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Home / Doubts and Solutions/GUJARAT OLD/Class 7/Mathematics

 - A vendor buys apples at the rate of 21 for Rs 7 and sells at the rate of 5 for Rs 2. What will be the result?

Asked by aryap7964 7th December 2017, 3:18 PM
Answered by Expert
Answer:
begin mathsize 16px style LCM space of space 21 space and space 5 equals 105 straight C. straight P. space for space 105 space apples equals 7 over 21 cross times 105 equals Rs. space 35 straight S. straight P. space for space 105 space apples equals 2 over 5 cross times 105 equals Rs. space 42 Since space straight S. straight P. greater than straight C. straight P. comma space profit equals Rs. space left parenthesis 42 minus 35 right parenthesis equals Rs. space 7 rightwards double arrow Profit percent sign equals 7 over 35 cross times 100 equals 20 percent sign end style
Answered by Expert 8th December 2017, 9:58 AM
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