A student buys a pen for Rs 30 and sells it for Rs 50. can you find its gainand gain percent

Asked by shrivastavaomprakash47 | 27th Aug, 2018, 04:13: PM

Expert Answer:

begin mathsize 16px style Cost space Price space of space straight a space pen space equals space Rs. space 30 space
Selling space Price space of space straight a space pen space equals space Rs. space 50
Since space straight S. straight P greater than straight C. straight P space comma space he space got space profit.
Profit space equals space straight S. straight P space minus space straight C. straight P space equals space 50 space minus space 30 space equals space 20
Profit space or space gain space pecent space space equals space fraction numerator Profit over denominator straight C. straight P space end fraction cross times 100 space equals space 20 over 30 cross times 100 space equals space 66.67 percent sign end style

Answered by Yasmeen Khan | 27th Aug, 2018, 06:48: PM

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