NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and Solutions
Question 73

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.

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NCERT Exemplar Solutions Class 7 – Mathematics – Unit 4: Simple Equations – Problems and Solutions | Detailed Answers