307  Speed
1

Name : _________________

 

refresh

Two trains that are 1260 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 900 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 850 km apart are heading towards each other at 100 km/h and 70 km/h. How many hours will it be before they meet?



Two trains that are 520 km apart are heading towards each other at 80 km/h and 50 km/h. How many hours will it be before they meet?



Two trains that are 1050 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 1710 km apart are heading towards each other at 100 km/h and 90 km/h. How many hours will it be before they meet?



Two trains that are 220 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 1120 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 360 km apart are heading towards each other at 90 km/h and 90 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 90 km/h. How many hours will it be before they meet?



+(         )

 

(         )+

++[[          ]]++

307    9 5 5 4 7 ( 30 )   9 2 8 2 5 ( 26 )   [[ 56 ]]