[問題]天山 6-24

[umum29]

Q24
A certain restaurant offers 6 kinds of cheese and 2 kinds of fruit for its dessert platter. If each dessert platter contains an equal number of kinds of cheese and kinds of fruit, how many different dessert platters could the restaurant offer ?
A: 8
B: 12
C: 15
D: 21
E: 27

答案為E :27

[JS]

one cheese and one fruit on one plate
C(6,1)*C(2,1)= 12

two cheese and two fruits on one place
C(6,2)*C(2,2)=15

12+15=27