Answer:
30 and 40
Explanation:
3 : 4 means 3 out of every 7 objects and 4 out of every 7.
30:40
Item A: item B : total
3 4 3+4
3 4 7
The total is 70
70/7 = 10
Multiply each item by 10
3*10 4 *10 7*10
30 40 70
1.6m questions
2.0m answers