The person who commented before me is mostly totally right
Answer:
yydjfstjvxyjndsryykcEt I'll knbcdf up mc
At the beginning, the chances that the teacher will choose a student who has forgotten his lunch are 2/10, or 1/5.
If the teacher now chooses another student from the remaining 9 students, the chances of his choosing a student who has forgotten his lunch are 1/9, since one of the forgetful students has already been removed from the original group of 10 students, and there are only 9 in the group remaining.
The probability that both students forgot lunch is (1/5)(1/9), or 1/45.
Answer:
They will meet after four hours
Step-by-step explanation:
The boat moving at 2.5 mph will have travelled 10 miles after 4 hrs, and the boat moving at 5 mph will have travelled 20 miles after 4 hrs
Answer:
The number of Girls players in the Team of 18 players is 6 .
Step-by-step explanation:
Given as :
The total number of player including boys and girls = 18
And 
times girls player + 
times boys player = 7
Let The number of boys player = B
The number of girls player = G
So, According to question
G + B = 18 ...1
× G + × B= 7
or, 
+ 
= 7 ...2
or, Put the value of B from eq 1
or, + 
= 7
Or, - 
+ 6 = 7
or, 
= 7 - 6
Or, 
= 1
∴ G = 1 × 6 = 6
Hence The number of Girls players in the Team of 18 players is 6 . Answer
