How To Prove 3 + 3 = 8 || IQ Test For Genius Students

In a mathematics test following marks were obtained by 40 students.Arrange these marks in a table using tally marks. 8 1 3 7 6 5 5 4 4 2 4 9 5 3 7 1 6 5 2 7 7 3 8 4 2 8 3 5 8 6 7 4 5 6How many students obtained marks below 4 ?

In class , 70 students wrote two tests, viz,. Test-I and Test-II. 50% of the students failed in Test-I and 40% of the students failed in Test-II. How many students passed in both the tests?

In a mathematics test following marks were obtained by 40 students.Arrange these marks in a table using tally marks. 8 1 3 7 6 5 5 4 4 2 4 9 5 3 7 1 6 5 2 7 7 3 8 4 2 8 3 5 8 6 7 4 5 6 9 6 4 4 6 6 Find how many students obtained marks equal to or more than 7?

In a certain class, one-third of the students were absent. Half of the total strength the Maths test and one-fourth of the total strength attended the Physics test. If 6 students attended both the tests and every students who was present attended at least one of the two test, how many students were absent on that day ?

In a class, 5% of the boys and 10% of the girls have an IQ more than 150. In the class 60% of the students are boys and rest girls. If a student is selected at random and found to have an IQ of more than 150, find the probability that the student is a boy.

In a class, 5% of the boys and 10% of the girls have an IQ more than 150. In the class 60% of the students are boys and rest girls. If a student is selected at random and found to have an IQ of more that 150, find the probability that the student is a boy.

42% of the total number of student passed in a class test. How many students failed, if the total number of students in the class is 1450 ?