386  Speed
1

Name : _________________

 

refresh

Two trains that are 840 km apart are heading towards each other at 60 km/h and 60 km/h. How many hours will it be before they meet?



Two trains that are 280 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 360 km apart are heading towards each other at 100 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 70 km/h and 90 km/h. How many hours will it be before they meet?



Two trains that are 770 km apart are heading towards each other at 50 km/h and 60 km/h. How many hours will it be before they meet?



Two trains that are 1280 km apart are heading towards each other at 90 km/h and 70 km/h. How many hours will it be before they meet?



Two trains that are 850 km apart are heading towards each other at 70 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 800 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 1330 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 1080 km apart are heading towards each other at 80 km/h and 100 km/h. How many hours will it be before they meet?



+(         )

 

(         )+

++[[          ]]++

386    7 2 2 3 7 ( 21 )   8 5 8 7 6 ( 34 )   [[ 55 ]]