Question

a dealer sold 25 copies of a book for rupees 1875 and gain 25% profit what is the cost price of each copy of the book​

Answer 1

Answer:

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Step-by-step explanation:

Sp1 = 700

profit = 25%

so cp = (sp × 100)/(100 + profit%)

= ( 700 × 100)/(100+25)

= (700 × 100)/125

= 5.6 × 100

= 560

again,

sp2 = 700

loss = 20%

cp = (sp × 100)/(100 - loss%)

= (700 × 100)/(100-20)

= (700 × 100)/80

= 175 × 5

= 875

total cp = 560 + 875 = 1435

total sp = 700 × 2 = 1400

since sp greater than cp so profit

= 1435 - 1400

= 35

therefore profit % = (profit × 100)/(cp)

= (35 × 100)/1400

= 35/14

= 2.5%

Answer 2

Ans. 75₹

Step-by-step explanation:

1875 ÷ 25

cost price of each book = 75