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Arthur weighs 10 lb more than twice Lily’s weight. If Arthur gains 10 lb, together they’ll weigh 230 lb. How much does each weigh now?

1 Answer

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Final answer:

By setting up equations based on the information given, we find that Lily currently weighs 70 lb and Arthur currently weighs 150 lb.

Step-by-step explanation:

To solve the problem presented, we need to set up equations based on the information given. Let's denote Lily's weight as L and Arthur's weight as A.

The problem gives us two pieces of information:

  • Arthur weighs 10 lb more than twice Lily's weight: A = 2L + 10.
  • If Arthur gains 10 lb, together they will weigh 230 lb: (A + 10) + L = 230.

Using the first equation, we can substitute the expression for A in the second equation:

  • (2L + 10 + 10) + L = 230

This simplifies to:

  • 3L + 20 = 230
  • 3L = 210
  • L = 70

Now that we have Lily's weight, we can find Arthur's current weight:

  • A = 2(70) + 10
  • A = 140 + 10
  • A = 150

So, Lily currently weighs 70 lb, and Arthur currently weighs 150 lb.

User LuckyLikey
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