1.

1). Rs. 8402). Rs. 10803). Rs. 10004). Rs. 1200

Answer»

COST price of Book = Rs. 800

Profit earned = 5%

We KNOW, Selling Price = Cost Price × (1 + (Profit Percentage)/100)

⇒ Selling price = $(800 \times \;\left( {1 + \;\frac{5}{{100}}} \RIGHT))$

⇒ Selling price = 800 × 1.05 = 840

Suppose the marked price of book is M.

We know, Selling Price = Marked Price × (1 – (Discount Percentage)/100)

So, $(840 = M \times \;\left( {1 - \;\frac{{30}}{{100}}} \right))$

⇒ 840 = 0.7 M

⇒ M = 840/0.7 = 1200

∴ Marked price of book is Rs. 1200.



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