Question

Tracy has 35 students in her class. 3/7 of them are ten years old and the remainder is nine years old. How many students are nine years old?∅ωФ

Answer 1

20

Explanation:

Tracy has 35 students in total. 3/7 of them are 10 years old.

3/7 of 35 is 15 (3/7x35=15)

The remainder of the students are 9 years old

35-15=20

20 of her students are 9 years old