Alright, so the answer has to be 30. Here's why:

first, we think, what is 1 part of 3/4. Well, 1/4+1/4+1/4=3/4. So 1 part of 3/4 has to be 1/4. Now I want you to remember this. Of means times(*). For example, 3/4 of 5/10. There is the word "of ". That means you MULTIPLY 3/4*5/10. SO in this problem, you have to do 1/4 times 120.

Now, 120 basically equals 120/1. So it is easier if you do 1/4*120/1. The multiplying fractions rule is to multiply numerator by numerator and denominator by denominator. So 1*120=120. 4*1=4. 120/4 is the final answer. Now, what is 120 divided by 4? Well, after you solve that, the answer will be 30. Hope this helps you! 😁😄💙