Answers
Given
Total participants: 346
Eligible participants after clinical examination:324
79 developed diabetes during the trail (when 79=324 then ?=100 cross multiply and divide i.e.,24%
Now the people without diabetes are just 245
After 4 years 56 developed diabetes. (22.8%)
Total no.with diabetes 135
Therefore when 135 are diabetic among 325
Then per 100 it will be 41.6 and therefore in a rate of thousand it will be 416 per 1000
.