واجب الستات

[Ł ớ M ŷ]

(A total of 7 different gifts are to be distributed among 10 children. How many distinct results are possible if no child is to receive more than one gift )

[Ł ớ M ŷ]

In how many ways can 3 novels and 2 mathemtics books and 1 chemistry book be arranged on a book f if:

a. The books can be arranged in any order

a) We have (3 + 2 + 1)! = 6! = 720 arrangements

[Ł ớ M ŷ]

b. The mathematics books must be together and novels must be together

The mathematics books can be arranged in 2! ways and the novels in 3! ways.
Then the block ordering of mathematics, novels, and chemistry books can be arranged in 3!
ways resulting in

(3!) . (2!) .(3!) = 72 ,

[بسمة ألـم]

المشاركة الأصلية كتبت بواسطة Ł ớ m ŷ (a total of 7 different gifts are to be distributed among 10 children. How many distinct results are possible if no child is to receive more than one gift )

مو طالع الجواب

[Ł ớ M ŷ]

المشاركة الأصلية كتبت بواسطة بسمة ألـم مو طالع الجواب

لانو رمز التوافيق مآ ينسخ معايا حطيتهآ صورة ,,

طيب ,, توافيق 10 من 5 ضرب مضروب السبعه = 604800