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1) 1 is what percent of 10?
2) What percent of 20 is 15?
3) 14 is what percent of 35?
4) 12 is 4% of what number?
5) 7 is 70% of what number?
6) 20% of what number is 15?
7) What is 20% of 160?
8) What is 50% of 70?
9) What is 30% of 20?
10) There are 250 pupils in a school. If 20% of them are girls, how many girl scouts does
the school have?

with solution pls​