Answer:
6
Step-by-step explanation:
it goes by two so I think it'll be six , not so sure tho :)
36/60, now reduce.
9/15, reduce more
3/5, so 3.5 of the students chosen at random used a calculator for computation.
It is right I made this in venn diagram . sorry for poor picture quality
Its 12. Part a was 2 part b was 3
6×2=12
4×3=12