The ratio of the number of chicken eggs to the number of duck eggs Farmer Li had on Monday was 3 : 4. While putting the eggs into a carton, Farmer Li broke 12 chicken eggs and the ratio of the number of chicken eggs to the number of duck eggs became 1 : 2. How many chicken eggs did Farmer Li have at first?

Okay so it will be 1123

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to