Somebody asked the teacher: — How many do you have pupils at yourself in the doctrine because I want to give you to the doctrine of the son? The teacher answered it: — If comes to me so many how many I have moreover a half and a quarter more and still your son, then I will have 56 pupils. How many pupils did the teacher have?

Let x - how many the teacher the equation have pupils: the 2nd +1kh/2+1kh/4+1=100 8kh/4+2kh/4+1/4=99 the 8th +2 +1st =396 11th =396 x =396:11 x =36 answer: 36
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