Answer:
y < 623.5
Step-by-step explanation:
Let the number be y
250yrs(1) - y < 3/5(1) + y
250 - y < 3/5 + y
combine the like terms
250 - 3/5 < y +y
250 - 3/5 < 2y
make 250 and 3/5 a single fraction first by finding the LCM of 5 and 1 which is 5. Multiply by their LCM.
(250/1)5 - (3/5)5
1250 - 3 < 2y
1247 < 2y
divide both sides by 2
y < 1247/2
y < 623.5