13. A man buys a certain number of articlesat 15 for Rs. 112.50 and se

1.	13. A man buys a certain number of articlesat 15 for Rs. 112.50 and sells them at 12for Rs. 108. Find:i) his gain percentii) the number of articles sold to make aprofit of Rs. 75.
Answer» Step-by-step EXPLANATION: CP of 15 ARTICLES =Rs112.50 ∴ CP of 1 ARTICLE =Rs 15 112.50 =Rs7.50 SP of 12 articles =Rs108 ∴ SP of 1 article =Rs 12 108 =Rs9 ∴ Profit =Rs9−Rs7.5=Rs1.50 (i)∴ Profit%= 7.5 1.5 ×100=20% (ii) CP of 50 article =Rs50×7.5=Rs375 and, SP of 50 article =Rs9×50=Rs450 ∴ Profit =SP−CP=Rs450−Rs375=Rs75

13. A man buys a certain number of articlesat 15 for Rs. 112.50 and sells them at 12for Rs. 108. Find:i) his gain percentii) the number of articles sold to make aprofit of Rs. 75.

Answer»

Step-by-step EXPLANATION:

CP of 15 ARTICLES =Rs112.50

∴ CP of 1 ARTICLE =Rs

112.50

=Rs7.50

SP of 12 articles =Rs108

∴ SP of 1 article =Rs

108

=Rs9

∴ Profit =Rs9−Rs7.5=Rs1.50

(i)∴ Profit%=

7.5

1.5

×100=20%

(ii) CP of 50 article =Rs50×7.5=Rs375

and, SP of 50 article =Rs9×50=Rs450

∴ Profit =SP−CP=Rs450−Rs375=Rs75

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13. A man buys a certain number of articlesat 15 for Rs. 112.50 and sells them at 12for Rs. 108. Find:i) his gain percentii) the number of articles sold to make aprofit of Rs. 75.​

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13. A man buys a certain number of articlesat 15 for Rs. 112.50 and sells them at 12for Rs. 108. Find:i) his gain percentii) the number of articles sold to make aprofit of Rs. 75.