## Ken had $15 more than Lisa at first. After Ken gave some of his money to Lisa, he had$21 less than Lisa. How much money

Question

Ken had $15 more than Lisa at first. After Ken gave some of his money to Lisa, he had$21 less than Lisa.
How much money did Ken give to Lisa?

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6 months 2021-07-31T04:00:24+00:00 1 Answers 35 views 0

1. Answer: $18 Step-by-step explanation: Ken has$15 more. If he gives this $15 to Lisa, Lisa will have$15 more than him. Now if he gives $1 more his amount will decrease by$1 while Lisa’s will increase by $1. So the difference increases by$2. The difference change is always twice the amount given. From $15 more to$21 more, that’s a change in difference of $6. So$6 ÷ 2 = $3. He gives Lisa$3 on top of that $15 so that mean$18 was given.