Question

Three kitchen timers are set to start at the same time. The first goes off every 10 minutes, the second goes off every 15 minutes and the third goes off every 25 minutes. How many minutes will pass before all three are going off at the same time? Show support and explain your process.

Please help immediately!!! :(

Answer 1

3 hours and 15mins

Explanation:

You first have to add the first clocks time to get to a hour 10+10+10 to get to 60mins then, you add the second clocks time 15+15+15 to get to 60 again last, you add the third clocks time 25+25+25 to get to 75 but subtract 60 mins from 75 to get 15mins left And turn the 60mins to hours so it’s 3hours 15mins have passed

Answer 2

3 hours and 15mins

Explanation:

You first have to add the first clocks time to get to a hour 10+10+10 to get to 60mins then, you add the second clocks time 15+15+15 to get to 60 again last, you add the third clocks time 25+25+25 to get to 75 but subtract 60 mins from 75 to get 15mins left And turn the 60mins to hours so it’s 3hours 15mins have passed