228  Speed
1

Name : _________________

refresh

Two trains that are 990 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 90 km/h and 50 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 360 km apart are heading towards each other at 70 km/h and 50 km/h. How many hours will it be before they meet?



Two trains that are 240 km apart are heading towards each other at 50 km/h and 70 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 600 km apart are heading towards each other at 70 km/h and 50 km/h. How many hours will it be before they meet?



Two trains that are 1200 km apart are heading towards each other at 90 km/h and 60 km/h. How many hours will it be before they meet?



Two trains that are 1050 km apart are heading towards each other at 90 km/h and 60 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?

+(         )

(         )+

++[[          ]]++