Answer:
A (i) impossible, because the card D doesn't exist.
(ii) evens, because the number of vowel cards and consonant cards is equal
B (i) 62 - 24 - 13 - 16 = 9
(ii) 24/62*100% = 38.7%
(iii) (13+16) / 62 * 100% = 46.77%
Answer:
43,758 different swimmer squad
Step-by-step explanation:
Given;
Total Number of athletes n = 18
Number of athletes needed to be selected r = 8
For this case, the coach need to select 8 players from a total of 18 athletes with no particular order. So, this is a combination case since the order of selection is not relevant.
The number of different swimmer squads the coach could select is;
S = nCr
nCr = n!/(r!×(n-r)!)
Substituting the values of n and r;
S = 18C8
S = 18!÷(8! × (18-8)!)
S = 18! ÷ (8!×10!)
S = 43,758
Therefore, he can select 43,758 possible different squads
The first one is the answer
Answer:
Step-by-step explanation:
To make it easy let's list the integers that are beetwen 15 to 30 inclusive :
15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30
- the numbers that are multiples of both 5 and 3 are ending with 5 and 0 and the sum o their digits is a multiple of 3
- 15,30 oly the values
the the whole interval ]15,30[ is the answer
