NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and SolutionsQuestion 92
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and Solutions
Question. 92
In a class of 60 students, the number of girls is one third the number of boys. Find the number of girls and boys in the class.
Answer:
15 girls and 45 boys
Detailed Answer with Explanation:
Let girls = x, boys = 60 − x.
x = (1/3)(60 − x) ⇒ 3x = 60 − x ⇒ 4x = 60 ⇒ x = 15, boys = 45.