536  Speed
 2

Name : _________________

  

refresh

Two trains that are 340 km apart are heading towards each other at 70 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 880 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 1040 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 510 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 80 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 60 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 280 km apart are heading towards each other at 70 km/h and 70 km/h. How many hours will it be before they meet?



1280 km 떨어진 양쪽 두 도시에서 각각 두대의 기차가 서로를 향해 90 km/h 와 70 km/h의 속도로 달려 오고있다. 두대의 기차가 서로 만나는데 몇시간이 걸리는가?



Two trains that are 800 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 1040 km apart are heading towards each other at 50 km/h and 80 km/h. How many hours will it be before they meet?

+(         )

 

(         )+

++[[          ]]++
536    2 8 8 3 4 ( 25 )   2 2 8 5 8 ( 25 )   [[ 50 ]]