186  Speed
1

Name : _________________

 

refresh

Two trains that are 1120 km apart are heading towards each other at 50 km/h and 90 km/h. How many hours will it be before they meet?



Two trains that are 750 km apart are heading towards each other at 100 km/h and 50 km/h. How many hours will it be before they meet?



Two trains that are 700 km apart are heading towards each other at 60 km/h and 80 km/h. How many hours will it be before they meet?



Two trains that are 1020 km apart are heading towards each other at 80 km/h and 90 km/h. How many hours will it be before they meet?



Two trains that are 1260 km apart are heading towards each other at 70 km/h and 70 km/h. How many hours will it be before they meet?



Two trains that are 1050 km apart are heading towards each other at 80 km/h and 70 km/h. How many hours will it be before they meet?



Two trains that are 1260 km apart are heading towards each other at 80 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 960 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 450 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 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?



+(         )

 

(         )+

++[[          ]]++

186    8 5 5 6 9 ( 33 )   7 7 6 3 5 ( 28 )   [[ 61 ]]