Animaljamdesires2121 Animaljamdesires2121

02-04-2020
Mathematics

contestada

A store has sold 90 notebooks, which is 20% of all the
notebooks they had. How many notebooks did the store
have at first?

A) 450
B) 23
C) 108
D) 500

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lycheeboba lycheeboba

02-04-2020

Answer: 450
Explanation: 20%=20/100=1/5
Multiply 90 by the reciprocal of 1/5 which is 5
90 x 5 =450

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