Real Numbers, Ncert Maths, Class 10

In a certain mathematics class, the part of the class that are members of the math club is 50% of the rest of that class. The total number of math club members in this class is what percent of the entire class?

There are 20 girls and 15 boys in a class.(a) What is the ratio of number of girls to the number of boys?(b) What is the ratio of number of girls to the total number of students in the class?

In a class of 36 students, 20 are girls and the rest are boys. Find the ratio of: the number of boys to the total number of students in the class.

Determine all pairs (a,b) of real numbers such that 10, a,b,ab are in arithmetic progression .

In a class of 40 students, 45% are girls. Find the number of boys in the class .

The ratio of number of girls to the number of boys in a class is 5:4. If there are 25 girls in the class, then the number of boys in the class is

The Math teacher has to give 5 worksheets to each student in her class. She finds that she has 2 worksheets less than what she needs. If the number of students in the class is f, how many worksheets did the teacher have with her?

Let R be the set of real numbers. Define the real function f : R ->Rb y f(x) = x + 10 and sketch the graph of this function.

In a class , 45 % of students are girls, If there are 22 boys in the class, then the total number of students in the class is