题目内容：

Fewer parents can hear the words “What can I do to help？” from their kids.Teenagers spend more time on video games，computers and mobile phones，so they help less with housework.

Few parents think games can let their kids be away from the sofa—much less encourage(鼓励) them to do chores.But some new chore apps(应用程序) really worked well.

You Rule Chores is one of the apps.Mrs.Wise says the app makes her three children compete(比赛) to see who can do more housework.They helped their mom wash the clothes and do the dishes.And the more housework they do，the more app coins they can get.They can use the coins to watch their favorite videos and buy something on the Internet.“It's fun，” says one of Mrs.Wise's children.

根据短文内容，回答下列问题。

1.What do teenagers spend more time on?

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2.What do the underlined words “much less” mean in Chinese?

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3.What's the name of the app?

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4.How many kids does Mrs.Wise have?

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5.What can children do with the app coins?

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