NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and Solutions
Question 69

Question. 69

A number exceeds the other number by 12. If their sum is 72, find the numbers.

Answer:

30 and 42

Detailed Answer with Explanation:

Let smaller number = x, then larger = x + 12.
x + (x + 12) = 72 ⇒ 2x + 12 = 72 ⇒ 2x = 60 ⇒ x = 30.
Other = 42.