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Mona is 20% Younger than Neetu. How Much Percent is Neetu Older than Mona? - Mathematics

Sum

Mona is 20% younger than Neetu. How much percent is Neetu older than Mona?

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Solution

Let Neetu's age = 100 years
then Mona's age
= 100 - 20
= 80 years
Difference of ages
= 100 - 80
= 20 years
If Mona is 80 years, then Neetu is older than Mona by = 20 years
If Mona is 1, year, then Neetu is older tan Mona by = `(20)/(80)`years
If Mona is 100 years, then Neetu is older than Mona by

= `(20)/(80) xx 100`years

= `(20 xx 100)/(80)`
= 25%

Concept: Concept of Percent and Percentage
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 7 Percent and Percentage
Exercise 7 (B) | Q 6 | Page 86
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