Bella, aki and andy think of a number. Bellas number is 875 more than akis number, aki subtracts 499 from his number and now aki is 245 less than Andys number. What is the difference between bella and andy

Answer: The difference between Bella's and Andy's number is 1129

Step-by-step explanation:

Let x represent Bella's number

Let y represent Aki's number

Let z represent Andy's number

Bella's number is 875 more than akis number. It means that

x = y + 875

aki subtracts 499 from his number and now aki is 245 less than Andys number. It means that

y - 499 = z - 245

z = y - 499 + 245 = y - 254

z = y - 254

The difference between Bella's and Andy's number is x - z. It becomes

y + 875 - (y - 254)

= y + 875 - y + 254

= y - y + 875 + 254

= 1129