NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and SolutionsQuestion 73
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and Solutions
Question. 73
In a school, the number of girls is 50 more than the number of boys. The total number of students is 1070. Find the number of girls.
Answer:
560
Detailed Answer with Explanation:
Let boys = x, then girls = x + 50.
x + (x + 50) = 1070 ⇒ 2x + 50 = 1070 ⇒ 2x = 1020 ⇒ x = 510.
Girls = 560.