by selling a microwave A shopkeeper made a profit of 15% on its cost price and sold it for rupees 675 more he would have made a profit of 20% on the cost price calculate the cost price of the microwave for the shopkeeper

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Solution

Dear Student,

$L e t C o s t P r i c e b e R s .' x' C a s e I : H e s o l d a t 15 % p r o f i t . S P = x + \frac{15}{100} \times x S P = 1.15 x C a s e I I : F o r 20 % p r o f i t . S P (C a s e I) + 675 = x + \frac{20}{100} \times x 1.15 x + 675 = 1.2 x 1.2 x - 1.15 x = 675 0.05 x = 675 x = \frac{675}{0.05} x = R s . 13, 500$

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by selling a microwave A shopkeeper made a profit of 15% on its cost price and sold it for rupees 675 more he would have made a profit of 20% on the cost price calculate the cost price of the microwave for the shopkeeper

Dear Student, Let Cost Price be Rs.'x'Case I: He sold at 15% profit.SP=x+15100×xSP=1.15xCase II: For 20% profit.SP(Case I)+675=x+20100×x1.15x+675=1.2x1.2x-1.15x=6750.05x=675x=6750.05x=Rs.13,500 Regards!