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?
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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?
Pick out the solution from the values given in the bracket next to each equation. Show that the other values do not satisfy the equation.
State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable.
(a) Given Munnu’s age to be x years, can you guess what (x – 2) may show? Can you guess what (x + 4) may show? What (3 x + 7) may show?
Change the following statements using expressions into statements in ordinary language.