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bearhunter [10]
2 years ago
15

5. The cost of my school exercise book was Rs. 10. Now she has to pay Rs

SAT
1 answer:
Annette [7]2 years ago
8 0

<h2>Given :-</h2>

  • Cost of school exercise book was Rs. 10

  • Now , she had to pay Rs. 12 for it .

<h2>To Find :-</h2>

  • The increase percentage of price of that book .

<h2>Solution :-</h2>

\underline{\bf{\dag} \:\bold{As\;we\;know\: that\: :}}

\sf Increase \% = \dfrac{(Value\;Increased)}{Initial\; Value} \times 100 \%

<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 !

\sf \leadsto \dfrac{2}{10} \times 100 \%

⇝2×10%

⇝20%

∴ The percent of increase in price of that school exercise book is 20 %

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6 0
2 years ago
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Answer:

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