The sum of two numbers is 1200.
One number is 400 less than the other number.
What are the two numbers?
- The smaller number.
- The larger number.
Smaller number = 1 u
Larger number = 1 u + 400
Sum of the two numbers
= 1 u + 1 u + 400
= 2 u + 400
2 u + 400 = 1200
2 u = 1200 - 400
2 u = 800
1 u = 800 ÷ 2 = 400
Smaller number
= 1 u
= 400
Larger number
= 1 u + 400
= 400 + 400
= 800
Answer(s): (a) 400; (b) 800