152  Speed
1

Name : _________________

refresh

Two trains that are 760 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 390 km apart are heading towards each other at 60 km/h and 70 km/h. How many hours will it be before they meet?



Two trains that are 1200 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 1200 km apart are heading towards each other at 100 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 1170 km apart are heading towards each other at 70 km/h and 60 km/h. How many hours will it be before they meet?

Two trains that are 300 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 1120 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 900 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 240 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 960 km apart are heading towards each other at 70 km/h and 90 km/h. How many hours will it be before they meet?

+(         )

(         )+

++[[          ]]++