Class 62 math test, the passing rate is 96, of which 2 people failed, how many people are in the cla

1. Arithmetic.

1 refers to unit 1, 96% refers to those who pass divided by the whole class, and 2 refers to those who fail.

2. Equation method.

Solution: Let the whole class have x people, and the title is x*(

Solution x=50

A: There are 50 students in the class.

Equation: 2 (1-96%)=2 4%=2 people).

2 is 2 people who fail, 1 is unit one, and 96% is the pass rate.

A: There are 50 students in the class.

The standard amount is the class size, the comparison amount is the number of people who fail, and the score corresponding to the number of students who fail is (1-96%).

Therefore, the method of finding the standard quantity of the class size is: the comparison quantity corresponding to the score = the standard quantity.

i.e. 2 (1-96%)=50 (person).

A: There are 50 students in the class.

The pass rate is 95%, so the failure rate is 4%.

So 2 people = 4% equation -- 1-96 =4% 2 4% = 50 (people).

The total number of people is 50. A: There are 50 students in the class.

1 refers to unit 1, 96% refers to those who pass divided by the whole class, and 2 refers to those who fail.

Fail rate 1 96 4

Answer: There are 50 people in the class.

Solution: Let the whole class have x people, and the solution from the question x*(, x=50

A: There are 50 students in the class.

2 people failed the 63 class mathematics examination bureau, and the passing rate was 99% in Shiliang, how many people were in the 63 class?

2 (1-99%) = 200 (person).

Answer: There are 200 people in the third class of Liutong returning to the state.

Set the whole class to x

x-2/x=99%

Multiply to get 99x=100(x-2).

99x=100x-200

x=200, so the class fights stupidly up to 200 people.

Passing rate = the number of people who do not dismiss the number of passing papers, the number of manuscripts, and the total number of people.

It is 3 percent into a percentile.

There are 40 students in Class 1 of the Sixth Family Reform Mathematics Passing Rate. Thirty-five people failed. All you need to do is use Sakura Destroyer, multiply 40 by that.

40 times equals 5 people.

There are five students who passed mathematics.

Those who failed were 35 people.

Solution: 40 people.

A: There were 280 people who failed.

Solution: 56 (1-85).

Answer: There are those who fail the 61 class and the wide slippery and boring. 8 people.

The number of students who passed accounted for 98 of the total class size

The number of students who failed was 1 98 2 of the class size

According to the conditions of the question, it can be known.

A: The pass rate is 90 percent.

Passing rate = number of passers 100% of the number of people taking the exam

The number of students who passed the mathematics score in the final examination of class 61 was 72, the number of students who failed was 8, and the number of people who took the exam.

72+8=80。Pass rate = 72 80 100% = 90% pass rate 90%.

72 (72 x. 8).

II 72-80

2. 90% A: The pass rate is 90%.

The failure rate is 4%, and the number of passers: the number of people who fail = the passing rate: the failure rate = 96%: 4% = 24:1

The failure rate is 1-96%=4%.

Number of passers: Number of people who fail = (total number * 96%): total number of people * 4%) = 24:1