<h3>Answer:</h3><h3>Answer A and Answer E are correct.</h3>
Explanation:
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1 answer:
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<h2>Given :-</h2>
- Cost of school exercise book was Rs. 10
- Now , she had to pay Rs. 12 for it .
- The increase percentage of price of that book .
<u>According</u><u> </u><u>to</u><u> </u><u>the question</u><u>, </u>
→ Increase of Price = ( Rs. 12 - Rs. 10 )
⇒ Rs. 2
→ Initial Value = Rs. 10
Let's solve by putting the values in the formula !
⇝2×10%
⇝20%
∴ The percent of increase in price of that school exercise book is 20 %