Four people need to cross a dark river at night. they have only one torch and the river is too risky to cross without torch. if all people cross simultaneously then torch light won't be sufficient. speed of each person of crossing the rivers is different . cross time for each person is 1,2,7 and 10 mins . what is the shortest time needed for all four of them to cross the river?
Answers
Answered by
0
take out the lcm of. given no.
Answered by
0
Step-by-step explanation:
How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?
Similar questions