Malcolm and Ravi raced each other. The average of their maximum speeds was km/h260 if doubled Malcolm's maximum speed would be km/h80 more than Ravi's maximum speed.

What were Malcolm's and Ravi's maximum speeds?

What is the least common multiple of 6 and 17?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.