I bought 5 pens- 7 pencils and 4 erasers- Rajan bought 6 pens- 8 erasers and 14 pencils an amount which was half what I had paid- What percent of the total amount paid by me was paid the pens-37-5 -62-5 -50 -None of these

Question

Toppr Admin · Accepted Answer

Let one pen- one pencil and one eraser cost - n- p- r units Let the amount paid by me - A-x2234-IPay-5n-7p-4r-A-1While Rajan pay -6n-14p-8r-1-5A-2Now multiply 1 by 2we get -x21D2-10n-14p-8r-2A-3Comparing 2 and 3-xA0- We see that while Rajan gets 4pen less -he pays 0-5A unit less-Thus A - the price of 8 pen -x2234-thepercentofthetotalpricepaidbymeinitiallywhichwasusedforpens-58-xD7-100-62-5

I bought 5 pens, 7 pencils and 4 erasers. Rajan bought 6 pens, 8 erasers and 14 pencils for an amount which was half more what I had paid. What percent of the total amount paid by me was paid for the pens?37.5 %62.5 %50 %None of these

I bought 5 pens, 7 pencils and 4 erasers. Rajan bought 6 pens, 8 erasers and 14 pencils for an amount which was half more what I had paid. What percent of the total amount paid by me was paid for the pens?
37.5 %
62.5 %
50 %
None of these