Answer:
3 : 10
Explanation:
Given that :
Total number of rolls = 50
Nunber of times '4' appeared = 15
Expressing the Number of times 4 appeared and the total number of rolls as a ratio:
Number of times 4 appear : total number of rolls
15 : 50
We reduce the the lowest term :
Divide both sides by 5
3 : 10