308  Speed
1

Name : _________________

 

refresh

Two trains that are 1170 km apart are heading towards each other at 50 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 640 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 320 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 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 880 km apart are heading towards each other at 60 km/h and 50 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 420 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 980 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 320 km apart are heading towards each other at 80 km/h and 80 km/h. How many hours will it be before they meet?



+(         )

 

(         )+

++[[          ]]++

308    9 6 4 2 4 ( 25 )   8 8 3 7 2 ( 28 )   [[ 53 ]]