NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and Solutions
Question 84

Question. 84

One of the two numbers is twice the other. The sum of the numbers is 12. Find the numbers.

Answer:

4 and 8

Detailed Answer with Explanation:

Let smaller = x, then larger = 2x.
x + 2x = 12 ⇒ 3x = 12 ⇒ x = 4, other = 8.