344  Speed
1

Name : _________________

 

refresh

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 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 1400 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 770 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 520 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 1200 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 1080 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 1350 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 600 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 770 km apart are heading towards each other at 50 km/h and 60 km/h. How many hours will it be before they meet?



+(         )

 

(         )+

++[[          ]]++

344    5 7 7 7 4 ( 30 )   8 9 9 4 7 ( 37 )   [[ 67 ]]