Class 9 || Number system || Real Number || Intro | exams

Number System- Introduction

If x is a real number and |x| lt 3 , then

If x is a real number and |x | lt 5 , then

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

A: Number of ions in 9 gram of NH_(4)^(+) is equal to Avogadro's number ( N_(A) ). R: Number of ions is equal to number of atoms.

Irrational numbers are real numbers also.

If x is a real number and |x|<5, then X

If a, b are positive real numbers, then |x|le a hArr

In a class, the number of boys is 3/2 times the number of girls. If there are 55 students in the class, find the number of boys and girls 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