Question

A car washer can wash 8 cars in 18 minutes. At this rate how many cars can be wash, in three hours? explain it!!​

Answer 1

Time taken to wash 8 cars= 18 minsTherefore time taken to wash 1 car= 18/8 => 9/4 mins.. Let the no. of cars washed in 3 hours(180 mins) be x; 9/4 * x = 180 x = 180 * 4/9 x = 80