The sum of two numbers is 1800.
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 = 1800
2 u = 1800 - 400
2 u = 1400
1 u = 1400 ÷ 2 = 700
Smaller number
= 1 u
= 700
Larger number
= 1 u + 400
= 700 + 400
= 1100
Answer(s): (a) 700; (b) 1100