a number. first increase by 10% and then decrease by 10% what is the original number
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Answer:
Step-by-step explanation:
→ let the required number be 100
→ Then , According to the question
→ firstly the number is increase by 10%
→ 100 + (100×10) / 100
→ 100+10
→ 110
→ secondly , it is decreased by 10%
→ 100 - (100×10) / 100
→ 110-11
→ 99
⇒ original number is 99.
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