Question

4. A book seller sold 200 copies of books at a profit
of 20%. If a book costs him 70, find the total
SP of the books.​

Answer 1

Answer:

₹1680

Step-by-step explanation:

CP of 1 book = 70

So CP of 200 copies of book = 70×200 = 1400

gain % = 20

so, SP = {(100+gain%)/100} × CP

= {100+20)/100}×1400

= (120/100) × 1400

= 1.20 × 1400 = 1680

so Total SP = ₹ 1680

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Answer 2

Step-by-step explanation:

A book costs is. ₹ 70

then 200 copies costs are 200×70= ₹ 14000

Now profit is 20% so :-

Profit = 14000×20/100

= ₹ 2800

So total SP is =14000+2800

= ₹16800