Rehana finishes reading a book in 20 days. Her sister Shabnam is 25% faster than her at reading. How many days will Shabnam take to finish reading the same book?

Rehana finishes reading a book in 20 days. Her sister Shabnam is 25% f

1.	Rehana finishes reading a book in 20 days. Her sister Shabnam is 25% faster than her at reading. How many days will Shabnam take to finish reading the same book?
A.	15
B.	16
C.	18
D.	25
Answer» C. 18

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Rehana finishes reading a book in 20 days. Her sister Shabnam is 25% faster than her at reading. How many days will Shabnam take to finish reading the same book?

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