223  Speed
1

Name : _________________

 

refresh

Two trains that are 600 km apart are heading towards each other at 50 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 1440 km apart are heading towards each other at 100 km/h and 60 km/h. How many hours will it be before they meet?



Two trains that are 1350 km apart are heading towards each other at 60 km/h and 90 km/h. How many hours will it be before they meet?



Two trains that are 380 km apart are heading towards each other at 90 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 600 km apart are heading towards each other at 70 km/h and 80 km/h. How many hours will it be before they meet?



Two trains that are 480 km apart are heading towards each other at 80 km/h and 80 km/h. How many hours will it be before they meet?



Two trains that are 560 km apart are heading towards each other at 90 km/h and 50 km/h. How many hours will it be before they meet?



Two trains that are 640 km apart are heading towards each other at 100 km/h and 60 km/h. How many hours will it be before they meet?



Two trains that are 700 km apart are heading towards each other at 50 km/h and 50 km/h. How many hours will it be before they meet?



Two trains that are 480 km apart are heading towards each other at 70 km/h and 50 km/h. How many hours will it be before they meet?



+(         )

 

(         )+

++[[          ]]++

223    4 9 9 2 4 ( 28 )   3 4 4 7 4 ( 22 )   [[ 50 ]]