25 people for programme A, 50 people for programme B, 10 people for both. So, number of employee employed only A is

How many educated people are employed ?

How many educated people are employed ?

In a survey, 50 people like product A, 30 people like product B and 20 people like product C and 35 people like exactly two products. If 5 people like all the three products then number of people who do not like any product . [There are 100 people in survey]

In a survey,50 people like product A,30 people like product B and 20 people like product C and 35 people 1 not like any product like exactly two products.If 5 people like all the three products then number of people who do.[There are 100 people in survey]