Question

3. If I purchased 11 books for Rs. 10 and sold all the books at the rate of 10 books for Rs. 11, the profit percent
(A) 10
(C) 219
(D) 100%​

Answer 1

Answer:

C) 21 %

Step-by-step explanation:

Cost price = Rs.s10

Selling price = Rs.11

Gain = Rs. \( \Large \frac{121}{10}-10 = Rs.\frac{21}{10} \)12110−10=Rs.2110

Gain % = \( \Large \frac{21}{10 \times 10} \times 100 \) = 21%2110×10×100 = 21%

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Answer 2

Answer:

21%

Step-by-step explanation:

because 11+11 is equal to 22 and minus 1 is 21

10 minus 10 is zero

so

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