Discover a wealth of knowledge at Westonci.ca, where experts provide answers to your most pressing questions. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

1. 10% of what number is 80?
2. 33.333% of what number is 21?


Sagot :

To get the result we can use proportion
10% -----------80
100% ---------x
Crossmultiply now
10*x=100*80
10x=8000     /:10
x=800 - its the answer

33.333% -----------21
100% --------------x
crossmultiply
33.33x=21*100
33.33x=2100         /:33.33
x=63 - its the answeer