Answer:
11 years old
Step-by-step explanation:
If four brothers have the average age 6, then the sum of their ages is
years.
Let x years be the age of sister. If four brothers and their sister have the average age 7, then
Multiply this equation by 5:
The sister is 11 years old.
Answer: There are 819 fewer number of cases of water bottle that all athlete, all coaches and all judges will get.
Step-by-step explanation:
Since we have given that
Number of days the meeting is going on = 3 days
Number of athletes = 117
Number of coaches = 7
Number of judges = 4
Number of bottles given to each athlete each day = 4
Total number of bottles total athlete for 3 days will get is given by
Number of bottles given to each coach each day = 3
Total number of bottles total coach for 3 days will get is given by
Number of bottles given to each judge each day = 2
Total number of bottles total judge for 3 days will get is given by
Number of cases of water bottle is given to athletes is given by
Number of cases of water bottle is given to coaches is given by
Number of cases of water bottle is given to judges is given by
We need to find the fewer number of cases that all athlete , all coaches and all judges will get
Hence, there are 819 fewer number of cases of water bottle that all athlete, all coaches and all judges will get.
Answer:
Step-by-step explanation:
the first answer is D
the second is B
